CN115986798A - Electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination - Google Patents
Electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination Download PDFInfo
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Abstract
The invention belongs to the technical field of charging station electric energy monitoring, and particularly discloses an electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination, which comprises the following steps: extracting a position and related charging data corresponding to a specified charging station in a target city, and charging related data and an entrance position corresponding to a current automobile to be charged; analyzing the chargeable quantity corresponding to the specified charging station to obtain the electric quantity state corresponding to the specified charging station, if the electric quantity state is in a balanced state, analyzing charging change and regulation, if the electric quantity state is in a sufficient state, determining a target charging pile of the current automobile to be charged, and if the electric quantity state is in a loss state, analyzing charging scheduling; the invention effectively solves the problem that the regulation is not carried out according to the supply demand state, not only improves the management efficiency and the management effect of the charging station, but also ensures the feasibility and the reliability of charging the charged automobile and the automobile to be charged.
Description
Technical Field
The invention belongs to the technical field of charging station electric energy monitoring, and relates to an electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination.
Background
In the world today, low-carbon economy has been incorporated into the mainstream awareness of the whole society. Under the background, the electric automobile shows wide prospects. As a basis for the development of the electric vehicle industry, the charging station currently has various problems of power grid capacity, power consumption discretization and the like, so that electric energy regulation of the electric vehicle charging station is very important.
At present, the charging regulation of the electric vehicle charging station is mainly used for realizing complementary coordination according to the load of the charging station and the load condition of a power grid, the regulation between the charging station and the power grid is emphasized, the optimal load proportion of a charging station system of the electric vehicle is realized, but the supply of the electric vehicle mainly changes along with the change of the charging demand of the vehicle, namely, the storage electric quantity supply of an energy storage cabinet in the electric vehicle charging station loses balance when the demand of the charging vehicle suddenly increases or decreases. Currently, the regulation is not carried out according to the supply demand state, and the following problems also exist: 1. the current distribution condition that focuses on the electric wire netting is not enough to vehicle charging station's concrete charge data utilization ratio and analysis dynamics, can't improve vehicle charging station's charge management efficiency and charge management effect for vehicle charging station management's harmony is not enough.
When the electric quantity of the charging station is balanced, the supply change condition of the charging station is not comprehensively considered, and when the automobile needs to be charged subsequently, the complexity of electric quantity management of the charging station is increased.
At present, the coordination scheduling is carried out by considering the power grid load firstly, the utilization rate of the stored energy is not increased as one of the main elements, the energy storage abandon rate of the energy storage equipment cannot be reduced, and the power grid load cannot be effectively reduced from the source.
Disclosure of Invention
In view of the above, to solve the problems in the background art, a complementary coordination based electric energy monitoring and adjusting method for an electric vehicle charging station is proposed.
The purpose of the invention can be realized by the following technical scheme: the invention provides an electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination, which comprises the following steps: s1, extracting charging station information: and extracting the position corresponding to the designated charging station in the target city and the related charging data.
S2, extracting information of the automobile to be charged: and extracting charging related data and the entrance position corresponding to the current automobile to be charged.
S3, analyzing the charging electric quantity of the automobile: analyzing the chargeable quantity corresponding to the designated charging station to obtain the electric quantity state corresponding to the designated charging station, if the electric quantity state is in a sufficient state, executing the step S4, if the electric quantity state is in a balanced state, executing the step S31, and if the electric quantity state is in an under-loss state, executing the step S32.
S31, charging regulation and analysis: and analyzing the charging change of the specified charging station, and if the charging change exists, analyzing the charging regulation and control to obtain the regulation and control information corresponding to the specified charging station.
S32, charging scheduling analysis: and carrying out charging scheduling analysis on the appointed charging station to obtain a target scheduling charging station corresponding to the appointed charging station.
S4, confirming and feeding back the charging position: and confirming a target charging pile corresponding to the current automobile to be charged, and starting a voice broadcasting terminal for broadcasting.
Preferably, the related charging data includes basic charging data, historical charging data, and current charging data.
The basic charging data comprise the number of charging piles and the reference charging power of the charging station.
The historical charging data comprises the number of the work charging piles corresponding to each monitoring day in each historical monitoring month and the work time interval of each work charging pile.
The current charging data comprise the number of current idle charging piles, residual electricity storage corresponding to the current idle charging piles, the number of current work charging piles, residual charging time corresponding to the current work charging piles, residual electricity storage and residual electricity storage corresponding to the current energy storage cabinet.
And the charging related data corresponding to the current automobile to be charged comprises battery related data, current residual electric quantity and past charging data.
The battery-related data includes a rated charging current, a rated charging voltage, a rated battery stock and an accumulated age, among others.
The past charging data comprises the past charging times, the corresponding initial charging amount in each past charging, the ending charging amount, the accumulated charging time and the battery temperature rise interval.
Preferably, the analyzing the chargeable quantity corresponding to the specified charging station includes: extracting historical charging data from related charging data of the specified charging station, and setting surplus electric quantity required by the specified charging station
。
According to the charging relevant data corresponding to the current automobile to be charged, calculating the predicted charging power consumption corresponding to the current automobile to be charged
。
Positioning the residual charging duration corresponding to each current work charging pile from the related charging data of the appointed charging station
And the remaining charge is greater or less than>
And the residual electric stock corresponding to each current idle charging pile>
Residual electricity stock corresponding to the current energy storage cabinet>
I represents the number of the work charging pile and the device>
J represents the number of the idle charging pile and is greater than or equal to>
。
Calculating the electric quantity filling index corresponding to the current appointed charging station
，
。
Wherein,
for a reference charge-up consumption corresponding to the set unit remaining charge time, a->
Is the set correction factor.
If it is
If yes, then the corresponding electric quantity state of the designated charging station is judged to be the filling state and the status is changed into the status of greater or less>
An index is defined for the set first charge fullness.
If it is
If so, the corresponding electric quantity state of the designated charging station is judged to be the balanced state, and then the corresponding electric quantity state is judged to be the balanced state>
An index is defined for the set second charge fullness.
If it is
Then, the corresponding electric quantity state of the designated charging station is judgedThe status is missing.
Preferably, the setting of the surplus power demand of the specified charging station comprises: extracting the number of the work charging piles corresponding to each monitoring day in the current month of the history from the historical charging data, and screening out the lowest number of the work charging piles
And the number of the charging piles is calculated through the mean value>
。
And extracting the charging time interval of each work charging pile in each monitoring day in the current month of the history from the historical charging data, and confirming the normal charging time interval corresponding to the specified charging station.
Comparing the current time point with the normal charging time interval corresponding to the appointed charging station to obtain the remaining normal charging time length after the current time point
。
Calculating surplus electric quantity of specified charging station demand
，
。
Wherein,
charging post duty for a set reference job>
Evaluating duty weighting factors and/or based on charging requirements corresponding to the set duty ratio and the set remaining charging duration of the working charging pile>
Evaluating a correction factor for a set charging requirement>
A predicted demand surplus electric quantity corresponding to the set unit charging demand evaluation index, based on the charge status of the battery>
For charging the number of the electric pile, is selected>
The remaining charging period is referred to for setting.
Preferably, the calculating the predicted charging power consumption corresponding to the current automobile to be charged includes: extracting rated charging current from charging related data corresponding to current automobile to be charged
Based on the nominal charging voltage>
And rated battery stock>
And accumulated service life>
And the current remaining charge->
。
Extracting past charging data from charging related data corresponding to the current automobile to be charged, and setting a battery charging state correction factor
。
Calculating the predicted charging power consumption corresponding to the current automobile to be charged
，
。
Wherein,
for a set compensation battery stock>
To set the charging factor, is>
，
To set the correction factor.
Preferably, the setting of the battery state of charge correction factor includes: extracting past charging times from past charging data
And counting the past charging frequency>
And the past standard charging times>
And the number of times of charging when the temperature of the past battery reaches the standard>
。
Calculating battery state of charge correction factor
，
。
Wherein,
correcting the estimated compensation factor for setting the battery state of charge, e being a natural constant, based on the measured value of the battery charge>
Normal charging frequency, stable service life, respectively, for a set reference>
Evaluating the duty ratio weight for the battery charging state corresponding to the set charging frequency, standard charging number ratio, age limit deviation, respectively>
The standard charging number ratio and the standard charging number ratio are respectively set as reference.
Preferably, the analyzing the charging variation for the designated charging station includes: historical charging data is extracted from the related charging data corresponding to the specified charging station, and the charging utilization rate corresponding to the specified transformer substation is counted according to the historical charging data
And charge duration rate
。/>
Calculating the current corresponding charge change trend index of the appointed charging station
，
。
Wherein,
evaluating the duty ratio weight for the charging variation corresponding to the set charging utilization rate and charging duration rate respectively,
、
a charge usage rate and a charge duration rate, respectively, which are set references>
A correction factor is evaluated for setting the charging variation.
If it is
Then, thenDetermining that there is a charging variation in the designated charging station, otherwise determining that there is no charging variation in the designated charging station, and->
To set a reference charge variation tendency index.
Preferably, the performing the charging regulation analysis includes: positioning charging station reference charging power from related charging data corresponding to specified charging station
。
Calculating adaptive charging power corresponding to designated charging station
，
。
Wherein,
correspondingly, the charging power value is adjusted appropriately for the charge variation index difference for a given unit>
To set a safe charging power.
Will be provided with
And/or>
And performing difference making to obtain a regulation charging power value corresponding to the specified charging station, and using the regulation charging power value as regulation information.
Preferably, the performing the charging scheduling analysis on the designated charging station includes: extracting positions corresponding to other automobile charging stations in a target city and externally-adjustable electricity storage quantity of energy storage cabinet from automobile charging station management platform
And the accumulated service life of the energy storage cabinet>
And r represents the number of each other vehicle charging station and->
。
Obtaining distances between the designated charging station location and each of the other vehicle charging station locations
。
Calculating dispatching recommendation indexes of other vehicle charging stations
And taking the automobile charging station with the maximum scheduling recommendation index as a target scheduling charging station corresponding to the specified charging station.
Wherein,
。
Preferably, the determining a target charging pile corresponding to the current automobile to be charged includes: extracting the position corresponding to each idle charging pile of the appointed charging station from the automobile charging station management platform, and then counting the entrance priority corresponding to each idle charging pile according to the entrance position corresponding to the current automobile to be charged
And manages the priority->
。
Calculating charging selection suitable indexes corresponding to all idle charging piles
And selecting the idle charging pile with the largest suitable index from the charging piles as a target charging pile corresponding to the current automobile to be charged.
Wherein,
。
Compared with the prior art, the invention has the following beneficial effects: (1) According to the invention, the chargeable quantity of the specified charging station is analyzed according to the charging related data corresponding to the current automobile to be charged, and the specified charging station and the current automobile to be charged are regulated according to the electric quantity state, so that the problem that the regulation is not carried out according to the supply demand state is effectively solved, the management efficiency and the management effect of the charging station are improved, the feasibility and the reliability of charging the charged automobile and the automobile to be charged are ensured, the coordination and the complementarity of the electric energy management of the automobile charging station are highlighted, and the load pressure of a power grid is reduced.
(2) According to the method and the device, the related charging data of the specified charging station and the related charging data of the current vehicle to be charged are deeply analyzed, the electric quantity fullness index corresponding to the current specified charging station is calculated, the electric quantity state corresponding to the current specified charging station is visually displayed, a reliable reference basis is provided for charging control in the subsequent specified charging station, the management progress of the vehicle charging station is promoted, and the reasonability of electric energy regulation of the charging station is guaranteed.
(3) According to the invention, through charging change analysis and regulation and control when the electric quantity state of the specified charging station is in a balanced state, the management complexity caused by the subsequent increase of automobile charging is effectively avoided, the utilization rate of the electric energy of the energy storage cabinet and the continuity of the electric energy supply are improved, the charging requirement of the subsequent charging automobile is met, and the normative of the specified charging electric energy management is ensured.
(4) According to the invention, when the electric quantity state of the designated charging station is in a loss state, the target scheduling charging station is confirmed through charging scheduling analysis, so that the utilization rate of the stored electric energy in the charging station with lower charging demand is greatly improved, the abandonment rate of the stored electric energy in the charging station with lower charging demand is effectively reduced, the interference and impact of electric energy scheduling on the power grid are avoided by calling the stored electric energy in the charging station with lower supply demand, and the power grid operation load is effectively reduced from the source.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart illustrating the steps of the method of the present invention.
Fig. 2 is a schematic diagram of the layout of charging pile positions in the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a complementary coordination-based electric energy monitoring and adjusting method for an electric vehicle charging station, the method comprising: s1, extracting charging station information: and extracting the corresponding position and the related charging data of the designated charging station in the target city.
Specifically, the relevant charging data includes basic charging data, historical charging data, and current charging data.
The basic charging data comprise the number of charging piles and the reference charging power of the charging station.
The historical charging data comprises the number of the work charging piles corresponding to each monitoring day in each historical monitoring month and the work time interval of each work charging pile.
The current charging data comprise the number of the current idle charging piles, the residual amount corresponding to each current idle charging pile, the number of the current work charging piles, the residual charging time corresponding to each current work charging pile, the residual amount and the residual amount corresponding to the current energy storage cabinet.
S2, extracting information of the automobile to be charged: and extracting charging related data and the entrance position corresponding to the current automobile to be charged.
Specifically, the charging related data corresponding to the current automobile to be charged comprises battery related data, current remaining electric quantity and past charging data.
The battery-related data includes a rated charging current, a rated charging voltage, a rated battery stock and an accumulated service life.
The past charging data comprises the past charging times, the corresponding initial charging amount in each past charging, the ending charging amount, the accumulated charging time and the battery temperature rise interval.
S3, analyzing the charging electric quantity of the automobile: analyzing the chargeable quantity corresponding to the designated charging station to obtain the electric quantity state corresponding to the designated charging station, if the electric quantity state is in a sufficient state, executing the step S4, if the electric quantity state is in a balanced state, executing the step S31, and if the electric quantity state is in an under-loss state, executing the step S32.
For example, the analyzing the chargeable quantity corresponding to the specified charging station includes: a1, extracting historical charging data from related charging data of a specified charging station, and setting surplus electric quantity required by the specified charging station
。
Understandably, the setting of the surplus electric quantity of the demand of the specified charging station comprises: a1-1, extracting the number of the work charging piles corresponding to each monitoring day in the current month of the history from the historical charging data, and screening out the lowest number of the work charging piles
And the number of the charging piles is calculated through the mean value>
。
A1-2, extracting the charging time interval of each work charging pile in each monitoring day in the current month of the history from the historical charging data, and confirming the normal charging time interval corresponding to the designated charging station.
It should be noted that the confirming of the normal charging time interval corresponding to the designated charging station specifically includes: and extracting an initial charging time point and an ending charging time point from the charging time intervals of the work charging piles in each monitoring day in the current historical month.
And respectively comparing the initial charging time point and the ending charging time point of each work charging pile in each monitoring day, taking the earliest initial charging time point as the initial charging time point of each monitoring day, and taking the latest ending charging time point as the ending charging time point of each monitoring day, so as to obtain the charging time interval corresponding to each monitoring day.
And taking the charging time interval of the first monitoring day as a reference charging time interval, comparing the charging time intervals corresponding to other monitoring days with the reference charging time interval, and counting the overlapping interval lengths of the charging time intervals corresponding to other monitoring days and the reference charging time interval.
Calculating the contact ratio of the charging time intervals corresponding to other monitoring days through a formula
Specific calculation formula thereof
D denotes a further monitoring day number>
，
For reference to the length of the charging time interval>
For the length of the overlap interval between the charging time interval corresponding to the other d-th monitoring day and the reference charging time interval, and->
Is a set reference overlap length ratio. />
And comparing the contact ratio of the charging time intervals corresponding to other monitoring days with the contact ratio of the set reference time interval, and if the contact ratio of the charging time intervals corresponding to other monitoring days is greater than the contact ratio of the reference time interval, recording the monitoring day as a charging similar monitoring day, thereby obtaining the number of the charging similar monitoring days corresponding to the first monitoring day.
The charging similar monitoring day number corresponding to other monitoring days is obtained by analyzing the charging similar monitoring day number corresponding to the first monitoring day in sequence
T denotes a monitoring day number>
。
Statistics of charge time concentration
，
。
Wherein,
to set a constant, is>
，
For setting reference a difference in the number of similarly monitored days>
Indicating the number of monitoring days.
If it is
Selecting one charging time interval from the charging time intervals corresponding to the monitoring days as a normal charging time interval corresponding to the appointed charging station, and if the charging time interval is greater than or equal to the normal charging time interval>
Or->
And taking the charging time interval corresponding to the monitoring day with the maximum number of charging similar monitoring days as the normal charging time interval corresponding to the specified charging station.
A1-3, comparing the current time point with the normal charging time interval corresponding to the appointed charging station to obtain the remaining normal charging time length after the current time point
；
A1-4, calculating the surplus electricity required by the appointed charging stationMeasurement of
，
；
Wherein,
charging post duty for a set reference job>
Evaluating duty weighting factors and/or based on charging requirements corresponding to the set duty ratio and the set remaining charging duration of the working charging pile>
Evaluating a correction factor for a set charge requirement>
A predicted demand surplus electric quantity corresponding to the set unit charging demand evaluation index, based on the charge status of the battery>
For charging the number of the electric pile, is selected>
The remaining charging period is referred to for setting.
A2, calculating the predicted charging power consumption corresponding to the current automobile to be charged according to the charging related data corresponding to the current automobile to be charged
。
Understandably, calculating the expected charging consumption electric quantity corresponding to the current automobile to be charged comprises the following steps: a2-1, extracting rated charging current from charging related data corresponding to the current automobile to be charged
Based on the nominal charging voltage>
Rated battery stock
And accumulated service life>
And the current amount of charge remaining>
。/>
A2-2, extracting past charging data from charging related data corresponding to the current automobile to be charged, and setting a battery charging state correction factor
。
Further, setting a battery state of charge correction factor, comprising: extracting past charging times from past charging data
And counting the charging frequency->
And the past standard charging times>
And the number of times of charging for the past battery temperature reaching the standard
。
It should be noted that, 1) the statistical process of the past charging frequency: specific statistical reference formula of past charging frequency
And (5) counting to obtain.
2) The statistical process of the past standard charging times is as follows: the method comprises the steps of extracting an initial charging amount and a cut-off charging amount corresponding to each charging in the past from past charging information corresponding to a current automobile to be charged, comparing the initial charging amount and the cut-off charging amount with a set reference value, if the initial charging amount or the cut-off charging amount corresponding to a certain charging in the past is smaller than the set reference value, changing the charging in the past into non-standard charging, counting the number of times of non-standard charging, and subtracting the number of times of past charging from the number of times of non-standard charging to obtain the number of times of past standard charging.
3) The statistical process of the charging times when the temperature of the past battery reaches the standard: extracting a battery temperature rise interval corresponding to each past charging from past charging data corresponding to the current automobile to be charged, comparing the battery temperature rise interval corresponding to each past charging with a set reference battery temperature rise interval, and recording the past charging as the battery temperature up-to-standard charging if the battery temperature rise interval corresponding to the past charging is in the set reference temperature rise interval, thereby obtaining the past battery temperature up-to-standard charging times.
Calculating a battery state of charge correction factor
，
；
Wherein,
correcting the estimated compensation factor for setting the battery state of charge, e being a natural constant, based on the measured value of the battery charge>
Normal charging frequency, stable service life, respectively, for a set reference>
Evaluating the duty ratio weight for the battery charging state corresponding to the set charging frequency, standard charging number ratio and service life deviation, and/or based on the battery charging state>
The standard charging number ratio and the standard charging number ratio are respectively set as reference.
A2-3, calculating the predicted charging power consumption corresponding to the current automobile to be charged
，
。
Wherein,
for a set compensation battery stock>
To set the charging factor, is>
，
To set the correction factor.
A3, positioning the residual charging duration corresponding to each current work charging pile from the related charging data of the specified charging station
And the remaining charge is greater or less than>
And the residual electric stock corresponding to each current idle charging pile>
Residual charge corresponding to the current energy storage cabinet>
I represents the number of the work charging pile and the device>
J represents the number of the idle charging pile and is greater than or equal to>
。
A4, calculating the electric quantity fullness index corresponding to the current designated charging station
，
。/>
Wherein,
for a reference charge-up consumption corresponding to the set unit remaining charge time, a->
Is the set correction factor.
A5, if
If yes, the corresponding electric quantity state of the designated charging station is judged to be the filling state, and the corresponding electric quantity state is judged to be the filling state>
An index is defined for the set first charge fullness.
A6, if
If so, the corresponding electric quantity state of the designated charging station is judged to be the balanced state, and then the corresponding electric quantity state is judged to be the balanced state>
An index is defined for the set second charge fullness.
A7, if
And judging that the electric quantity state corresponding to the appointed charging station is the loss state.
According to the embodiment of the invention, the related charging data of the specified charging station and the charging related data of the current vehicle to be charged are deeply analyzed, the electric quantity fullness index corresponding to the current specified charging station is calculated, the electric quantity state corresponding to the current specified charging station is visually displayed, a reliable reference basis is provided for charging control in the subsequent specified charging station, the management progress of the vehicle charging station is promoted, and the reasonability of electric energy regulation of the charging station is also ensured.
S31, charging regulation and analysis: and analyzing charging variation of the appointed charging station, and if charging variation exists, analyzing charging regulation and control to obtain regulation and control information corresponding to the appointed charging station.
Illustratively, the analyzing the charging variation of the designated charging station includes: historical charging data is extracted from the related charging data corresponding to the specified charging station, and the charging utilization rate corresponding to the specified transformer substation is counted according to the historical charging data
And charge duration->
。
It should be noted that, the statistical process of the charging utilization rate corresponding to the designated substation is as follows: and carrying out average calculation on the number of the work charging piles corresponding to each monitoring day in each historical monitoring month to obtain the number of the average work charging piles corresponding to each historical monitoring month.
And comparing the average work charging pile number corresponding to each historical monitoring month with the set reference work charging pile number, and if the average work charging pile number corresponding to a certain monitoring month is greater than the set reference work charging pile number, marking the monitoring month as a high-frequency month, so as to obtain the high-frequency month number.
According to the formula
And calculating to obtain the charging utilization rate corresponding to the specified transformer substation.
It should be further noted that, the statistical process of the charging duration rate corresponding to the designated substation is as follows: and charging time intervals of the charging piles corresponding to the monitoring days in the historical monitoring months.
And fusing the charging time intervals of the work charging piles corresponding to the monitoring days in each historical monitoring month to obtain the charging time intervals corresponding to the monitoring days in each historical monitoring month, and further obtain the charging time corresponding to the monitoring days in each historical monitoring month.
And performing average calculation on the charging duration corresponding to each monitoring day in each historical monitoring month to obtain the average single-day charging duration corresponding to each historical monitoring month.
And comparing the average single-day charging time corresponding to each historical monitoring month with the set reference single-day average charging time, and if the average single-day charging time corresponding to a certain monitoring month is greater than the set reference single-day average charging time, recording the monitoring month as a charging continuous month, thereby counting the number of the charging continuous months.
According to the formula
And calculating to obtain the charging duration rate corresponding to the specified transformer substation. />
Calculating the current corresponding charge change trend index of the appointed charging station
，
。
Wherein,
evaluating the duty ratio weight for the charging variation corresponding to the set charging utilization rate and charging duration rate respectively,
、
a charge usage rate and a charge duration rate, respectively, which are set references>
A correction factor is evaluated for setting the charging variation.
If it is
If so, determining that the designated charging station has charging variation, otherwise determining that the designated charging station has no charging variation, and/or>
To set a reference charge variation tendency index.
Further, performing charging regulation analysis, including: positioning charging station reference charging power from related charging data corresponding to specified charging station
。
Calculating adaptive charging power corresponding to designated charging station
，
。
Wherein,
correspondingly, the charging power value is adjusted appropriately for the charge variation index difference for a given unit>
To set a safe charging power.
Will be provided with
And/or>
And performing difference making to obtain a regulation charging power value corresponding to the specified charging station, and using the regulation charging power value as regulation information.
According to the embodiment of the invention, the charging change is analyzed and regulated when the electric quantity state of the specified charging station is in a balanced state, so that the management complexity caused by the subsequent increase of automobile charging is effectively avoided, the utilization rate of the electric energy of the energy storage cabinet and the continuity of electric energy supply are improved, the charging requirement of the subsequent charging automobile is met, and the normative of the specified charging electric energy management is ensured.
S32, charging scheduling analysis: and carrying out charging scheduling analysis on the appointed charging stations to obtain target scheduling charging stations corresponding to the appointed charging stations.
Illustratively, the charge scheduling is performed for a designated charging stationAnd (3) resolving, including: extracting positions corresponding to other automobile charging stations in a target city and externally-adjustable electricity storage quantity of energy storage cabinet from automobile charging station management platform
And the accumulated service life of the energy storage cabinet
And r represents the number of each other vehicle charging station and->
。
Obtaining distances between the designated charging station location and each of the other vehicle charging station locations
。
Calculating dispatching recommendation indexes of other vehicle charging stations
And taking the automobile charging station with the maximum scheduling recommendation index as a target scheduling charging station corresponding to the specified charging station.
Wherein,
。
According to the embodiment of the invention, the chargeable quantity of the specified charging station is analyzed according to the charging related data corresponding to the current automobile to be charged, and the specified charging station and the current automobile to be charged are regulated according to the electric quantity state, so that the problem that the regulation is not carried out according to the supply demand state is effectively solved, the management efficiency and the management effect of the charging station are improved, the charging feasibility and the charging reliability of the charged automobile and the automobile to be charged are ensured, the coordination and the complementarity of the electric energy management of the automobile charging station are highlighted, and the load pressure of a power grid is reduced.
According to the invention, when the electric quantity state of the designated charging station is in a loss state, the target scheduling charging station is confirmed through charging scheduling analysis, so that the utilization rate of the stored electric energy in the charging station with lower charging demand is greatly improved, the abandonment rate of the stored electric energy in the charging station with lower charging demand is effectively reduced, the interference and impact of electric energy scheduling on the power grid are avoided by calling the stored electric energy in the charging station with lower supply demand, and the power grid operation load is effectively reduced from the source.
S4, confirming and feeding back the charging position: and confirming a target charging pile corresponding to the current automobile to be charged, and starting a voice broadcasting terminal for broadcasting.
Referring to fig. 2, specifically, the determining of the target charging pile corresponding to the current car to be charged includes: extracting the position corresponding to each idle charging pile of the appointed charging station from the automobile charging station management platform, and then counting the entrance priority corresponding to each idle charging pile according to the entrance position corresponding to the current automobile to be charged
And manages the priority->
。
It should be noted that the statistical process of the entry priority is as follows: and acquiring the distance between the position of each idle charging pile and the entrance position corresponding to the current automobile to be charged as the driving-in distance of each idle charging pile.
And carrying out average value calculation on the driving-in distance of each idle charging pile, and taking the calculation result as a reference driving-in distance.
According to the formula
And calculating to obtain the driving-in priority corresponding to each idle charging pile.
It should be further noted that the specific statistical process of the management priority corresponding to each idle charging pile is as follows: optionally, one charging pile is selected as a reference charging pile in each idle charging pile.
The types of the left charging pile and the right charging pile corresponding to the reference charging pile are extracted from the automobile charging station management platform.
And positioning the management priority corresponding to the reference charging pile from the management priority reference table according to the types of the left charging pile and the right charging pile corresponding to the reference charging pile.
Obtaining the corresponding management priority of other idle charging piles according to the same manner of obtaining the corresponding management priority of the reference charging pile, and obtaining the corresponding management priority of each idle charging pile
In which>
Takes a value of W1 or W2 or W3 or W4 or W5 or W6, wherein>
。
In a specific embodiment, W2, W1, W5, W3, W6, W4 may take values of 0.85, 0.7, 0.6, 0.45, 0.3, 0.1 in sequence, and the management priority reference table takes month 1 as an example, which is specifically shown in table 1 below.
Table 1 management priority reference table
| Left side charging pile type | Type of right side charging pile | Managing priority |
| Work fills electric pile | Work fills electric pile | W1 |
| Work charging pile | Idle charging pile | W2 |
| Idle charging pile | Work charging pile | W3 |
| Idle charging pile | Idle charging pile | W4 |
| Work fills electric pile | Is free of | W5 |
| Idle charging pile | Is composed of | W6 |
Calculating charging selection suitable indexes corresponding to all idle charging piles
And selecting the idle charging pile with the largest suitable index as the target charging pile corresponding to the current automobile to be charged.
Wherein,
。
According to the embodiment of the invention, through carrying out charging selection analysis from two dimensions of the management priority and the entrance priority, the defects existing in the current charging position selection only according to the distance level are avoided, the charging selection rationality of the vehicle to be charged is improved, and the normative and the convenience of the management of the charged vehicles in the charging station are also improved.
The foregoing is merely exemplary and illustrative of the principles of this invention and various modifications, additions and substitutions of similar embodiments may be made to the specific embodiments described by those skilled in the art without departing from the principles or exceeding the scope of the invention as defined in the claims.
Claims (10)
1. The electric energy monitoring and adjusting method of the electric vehicle charging station based on complementary coordination is characterized by comprising the following steps of: the method comprises the following steps:
s1, extracting charging station information: extracting a position and related charging data corresponding to a designated charging station in a target city;
s2, extracting information of the automobile to be charged: extracting charging related data corresponding to the current automobile to be charged and the position of an entrance of the automobile to be charged;
s3, analyzing the charging electric quantity of the automobile: analyzing the chargeable quantity corresponding to the designated charging station to obtain the electric quantity state corresponding to the designated charging station, if the electric quantity state is a sufficient state, executing the step S4, if the electric quantity state is a balanced state, executing the step S31, and if the electric quantity state is an under-loss state, executing the step S32;
s31, charging regulation and analysis: carrying out charging change analysis on the appointed charging station, and if charging change exists, carrying out charging regulation and control analysis to obtain regulation and control information corresponding to the appointed charging station;
s32, charging scheduling analysis: performing charging scheduling analysis on the designated charging station to obtain a target scheduling charging station corresponding to the designated charging station;
s4, confirming and feeding back the charging position: and confirming a target charging pile corresponding to the current automobile to be charged, and starting a voice broadcasting terminal for broadcasting.
2. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 1, characterized in that: the related charging data comprises basic charging data, historical charging data and current charging data;
the basic charging data comprise the number of charging piles and the reference charging power of the charging station;
the historical charging data comprises the number of the work charging piles corresponding to each monitoring day in each historical monitoring month and the work time interval of each work charging pile;
the current charging data comprise the number of current idle charging piles, the residual electric quantity corresponding to each current idle charging pile, the number of current working charging piles, the residual charging time corresponding to each current working charging pile, the residual electric quantity and the residual electric quantity corresponding to the current energy storage cabinet;
the charging related data corresponding to the current automobile to be charged comprises battery related data, current residual quantity and past charging data;
the battery related data comprises rated charging current, rated charging voltage, rated battery stock and accumulated service life;
the past charging data comprises the past charging times, the corresponding initial charging amount in each past charging, the ending charging amount, the accumulated charging time and the battery temperature rise interval.
3. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 2, characterized in that: the analyzing the chargeable quantity corresponding to the designated charging station comprises the following steps:
extracting historical charging data from related charging data of the specified charging station, and setting surplus electric quantity required by the specified charging station
;
According to the charging relevant data corresponding to the current automobile to be charged, calculating the predicted charging power consumption corresponding to the current automobile to be charged
；
Positioning the residual charging duration corresponding to each current work charging pile from the related charging data of the appointed charging station
And the remaining charge is greater or less than>
And the residual electric stock corresponding to each current idle charging pile>
Residual electricity stock corresponding to the current energy storage cabinet>
I represents the number of the work charging pile and/or the number of the work charging pile>
J represents the number of the idle charging pile and is greater than or equal to>
(ii) a Calculating the electric quantity filling index corresponding to the current designated charging station>
，
；/>
Wherein,
a reference charge power consumption amount corresponding to a set unit remaining charge time period, device for selecting or keeping>
Is a set correction factor;
if it is
If yes, the corresponding electric quantity state of the designated charging station is judged to be the filling state, and the corresponding electric quantity state is judged to be the filling state>
Defining an index for a set first charge fullness;
if it is
If so, the corresponding electric quantity state of the designated charging station is judged to be the balanced state, and then the corresponding electric quantity state is judged to be the balanced state>
Defining an index for the set second charge fullness;
if it is
And judging that the electric quantity state corresponding to the appointed charging station is the loss state.
4. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 3, characterized in that: the surplus electric quantity of the demand of the designated charging station is set, and the surplus electric quantity comprises the following steps:
extracting the number of the work charging piles corresponding to each monitoring day in the current month of the history from the historical charging data, and screening out the lowest number of the work charging piles
And the number of the charging piles is calculated through the mean value>
；
Extracting the charging time interval of each work charging pile in each monitoring day in the current month of the history from the historical charging data, and confirming the normal charging time interval corresponding to the appointed charging station;
comparing the current time point with the normal charging time interval corresponding to the appointed charging station to obtain the remaining normal charging time length after the current time point
；
Calculating surplus electric quantity of specified charging station demand
，
；
Wherein,
charging post duty for a set reference job>
Evaluating duty weighting factors and/or based on charging requirements corresponding to the set duty ratio and the set remaining charging duration of the working charging pile>
Evaluating a correction factor for a set charging requirement>
A predicted demand surplus electric quantity corresponding to the set unit charging demand evaluation index, based on the charge status of the battery>
For charging pile number, based on the charging pile number>
The remaining charging period is referred to for setting.
5. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 3, characterized in that: the calculating the predicted charging power consumption corresponding to the current automobile to be charged comprises the following steps:
extracting rated charging current from charging related data corresponding to current automobile to be charged
Based on the nominal charging voltage>
And rated battery stock>
And accumulated service life>
And the current remaining charge->
；
Extracting past charging data from charging related data corresponding to the current automobile to be charged, and setting a battery charging state correction factor
；
Calculating the corresponding predicted charging power consumption of the current automobile to be charged
，
;
Wherein,
for a set compensation battery stock>
For setting a charging factor>
，
To set the correction factor.
6. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 5, characterized in that: the setting of the battery state of charge correction factor includes:
extracting past charging times from past charging data
And counting the charging frequency->
And the past standard charging times>
And the number of times of charging when the temperature of the past battery reaches the standard>
；
Calculating battery state of charge correction factor
，
；
Wherein,
correcting the estimated compensation factor for setting the battery state of charge, e being a natural constant, based on the measured value of the battery charge>
Normal charging frequency, stable service life, respectively, for a set reference>
Evaluating the duty ratio weight for the battery charging state corresponding to the set charging frequency, standard charging number ratio and service life deviation, and/or based on the battery charging state>
The standard charging number ratio and the standard charging number ratio are respectively set as reference.
7. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 2, characterized in that: the analysis of charging change to the appointed charging station includes:
historical charging data is extracted from the related charging data corresponding to the specified charging station, and the charging utilization rate corresponding to the specified transformer substation is counted according to the historical charging data
And charge duration->
；
Calculating a specified chargeStation current corresponding charge variation trend index
，
；
Wherein,
evaluating duty weights for the charge usage and charge duration corresponding to the charge variation, respectively>
、
Charge utilization rate, charge duration rate, respectively, for a set reference>
Evaluating a correction factor for a set charge variation;
if it is
If so, determining that the designated charging station has charging variation, otherwise determining that the designated charging station has no charging variation, and/or>
To set a reference charge variation tendency index.
8. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 7, characterized in that: the performing of the charging regulation and control analysis includes:
positioning charging station reference charging power from related charging data corresponding to specified charging station
；
Calculating adaptive charging power corresponding to designated charging station
，
；
Wherein,
adjusting the charging power value correspondingly suitably for a set unit charge fluctuation trend index difference>
Setting safe charging power;
will be provided with
And/or>
And performing difference making to obtain a regulation charging power value corresponding to the specified charging station, and using the regulation charging power value as regulation information.
9. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 4, characterized in that: the dispatch of charging is analytic to appointed charging station, include:
extracting positions corresponding to other automobile charging stations in a target city and externally-adjustable electricity storage quantity of energy storage cabinet from automobile charging station management platform
And the accumulated service life of the energy storage cabinet>
And r represents the number of each other vehicle charging station and->
；
Obtaining distances between the designated charging station location and each of the other vehicle charging station locations
；/>
Calculating dispatching recommendation indexes of other vehicle charging stations
Taking the vehicle charging station with the maximum scheduling recommendation index as a target scheduling charging station corresponding to the designated charging station; wherein,
10. The electric vehicle charging station electric energy monitoring and adjusting method based on complementary coordination of claim 3, characterized in that: confirm the target charging stake that waits to charge car at present and correspond, include:
extracting the position corresponding to each idle charging pile of the appointed charging station from the automobile charging station management platform, and then counting the entrance priority corresponding to each idle charging pile according to the entrance position corresponding to the current automobile to be charged
And manages the priority->
；
Calculating charging selection suitable indexes corresponding to all idle charging piles
Selecting the idle charging pile with the largest suitable index from the idle charging piles as a target charging pile corresponding to the current automobile to be charged;
wherein,
；
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