CN203324773U - Wind farm centralized control system - Google Patents
Wind farm centralized control system Download PDFInfo
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- CN203324773U CN203324773U CN2013203028565U CN201320302856U CN203324773U CN 203324773 U CN203324773 U CN 203324773U CN 2013203028565 U CN2013203028565 U CN 2013203028565U CN 201320302856 U CN201320302856 U CN 201320302856U CN 203324773 U CN203324773 U CN 203324773U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a wind farm centralized control system, which comprises a centralized control level and a station control level. The centralized control level and the station control level are connected through a communication device. The station control level comprises an acquisition end used for acquiring the running parameters of equipment inside a wind farm and a control execution end used for transmitting the parameters acquired by the acquisition end to the centralized control level and executing a control command sent from the centralized control level. The centralized control level comprises a monitoring end for monitoring the data acquired by the acquisition end and a control end sending the control command out. The station control level of the system acquires the running information of each equipment inside the wind farm, and transmits the information to the centralized control level and meanwhile receives and executes the control command sent from the centralized control level. The centralized control level receives information sent from the station control level, analyzes and stores the information and meanwhile sends the control command to the station control level according to analysis results and/or control requirements. The wind farm is thus remotely monitored and controlled. The running and maintaining cost of the wind farm is further reduced.
Description
Technical field
The utility model relates to wind energy turbine set control technology field, relates in particular to a kind of wind energy turbine set centralized control system.
Background technology
Wind energy, as a kind of clean regenerative resource, more and more is subject to the attention of countries in the world.Its amount of accumulateing is huge, and the wind energy in the whole world is about 2.74 * 10
9MW, wherein available wind energy is 2 * 10
7MW, than also large 10 times of the water energy total amounts that can develop on the earth.Wind is utilized by people very early--be mainly by windmill draw water, flour milling etc., and now, people are interested is how to utilize wind to generate electricity.
Due to the condition restriction of wind-power electricity generation own, the aerogenerator general work, under rugged environment, moves all the year round in unattended situation, thereby will guarantee it is carried out in real time, controls reliably.In a modern Large Scale Wind Farm Integration, how effectively each wind energy conversion system state to be carried out to monitoring and controlling, make whole wind energy turbine set safety, reliably, operation becomes most important economically.And need to carry out monitoring and controlling to on-the-spot operational outfit, to realize the functions such as data acquisition, equipment control, measurement, parameter adjusting and accident alarming.The correct running status of grasping wind power system, can help the rapid diagnosis system fault, enhances productivity.
Because wind power installation all is mounted on tens meters high-altitudes, monitoring and replacing be trouble very, therefore the condition monitoring that often carries out equipment not only can be found and the processing problem in time, can also go out from breaking down the time of sign to thorough inefficacy by analysis and prediction, in order to arrange in time maintenance, better ensure that the normal operation of wind power generating set and the expense of minimizing wind field drop into, but ensure the continuous operation of wind power plant.Now, wind-power electricity generation as clean regenerative resource by large-scale development and use, wind-powered electricity generation equipment cost costliness, wind energy turbine set construction investment in early stage scale is large, the critical component of adding the wind-powered electricity generation equipment is precise part, position disperses, and maintenance cost is high, makes current cost of wind power generation compare comparatively ripe thermoelectricity and water power high.According to statistics, in cost of wind power generation, depreciation cost and maintenance cost account for 53% and 32% of total cost, with the coal electricity, compare, the depreciation of fixed assets expense of wind-power electricity generation is more than 1 times of (20%～22%) of coal electricity, but the generating coefficient only is equivalent to 1/2 of coal electricity, by concentrating the operation supervisory systems to reduce cost of wind power generation, be an important channel of realizing low cost wind power generator.
The utility model content
The purpose of this utility model is to propose a kind of wind energy turbine set centralized control system, and this supervisory system can realize a plurality of wind energy turbine set are carried out to remotely monitor and control, has realized unattended or few people on duty, and the purpose of zone maintenance, reduced operation and maintenance cost.
For reaching this purpose, the utility model by the following technical solutions:
A kind of wind energy turbine set centralized control system, comprise collection control layer and station level, wherein, between described collection control layer and station level, by communicator, connects;
Described station level comprises the collection terminal for gathering equipment operational factor in wind energy turbine set and passes to collect for the parameter that collection terminal is gathered controls layer, and the execution collection is controlled layer control actuating station of the steering order sent;
Described collection control layer comprises the monitoring client of being monitored for the data to described collection terminal collection and sends the control end of steering order.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described communicator is network service or serial communication.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, be provided with safe xegregating unit on described communicator.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described monitoring client comprises monitor workstation, maintenance work station, gps clock, data acquisition server, data storage server, network server and output unit.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described monitoring client also comprises warning device.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described warning device at least comprise that audible alarm, light are reported to the police or language alarm one of them.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described control end comprises the control operation station and controls the SCADA server.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described control actuating station is preposition industrial computer.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, described safe xegregating unit comprises individual event isolation gap and vertical encryption device.
As a kind of preferred version of above-mentioned wind energy turbine set centralized control system, the equipment in described wind energy turbine set comprises blower fan, booster stations, watt metering system.
The beneficial effects of the utility model are: the utility model provides a kind of wind energy turbine set centralized control system, this system is divided into collection control layer and station level, the parameter information of each equipment of station level Real-time Collection wind energy turbine set wherein, and this communication to collection is controlled to layer, and receive and carry out the steering order by the transmission of collection control layer; Collection control layer receives the information sent by station level, and this information is analyzed, stored, according to analysis result and/or control, require the station level sending controling instruction simultaneously, thereby realized wind energy turbine set is carried out the purpose of remote monitoring and control, the management level to wind energy turbine set have been improved, and the purpose that has realized unattended or few people on duty, reduced the operation and maintenance cost of wind energy turbine set.
The accompanying drawing explanation
Fig. 1 is the structural representation of the wind energy turbine set centralized control system that provides of the utility model embodiment 1.
Wherein:
1: collection control layer; 2: station level;
11: monitoring client; 12: control end; 21: collection terminal; 22: control actuating station;
111: monitor workstation; 112: the maintenance work station; The 113:GPS clock; 114: data acquisition server; 115: data storage server; 116: network server; 117: output unit; 118: warning device;
121: the control operation station; 122: control the SCADA server;
21: collection terminal; 22: control actuating station.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by embodiment.
Present embodiment provides a kind of wind energy turbine set centralized control system, and it is applicable to a plurality of wind energy turbine set are carried out to remotely monitor and control, can realize the purpose of unattended or few people on duty, zone maintenance, and has further reduced operation and the maintenance cost of wind energy turbine set.
As shown in Figure 1, above-mentioned wind energy turbine set centralized control system, comprise collection control layer 1 and station level 2, wherein, between collection control layer 1 and station level 2, by communicator, connect, the operation information of each equipment of the wind energy turbine set by its detection that station level 2 is real-time by communicator passes to collection control layer 1, and collection control layer 1 sends to station level 2 by communicator by steering order.
Above-mentioned communicator is network service or serial communication, and, in order to strengthen the security of communication between collection control layer 1 and station level 2, is provided with safe xegregating unit on communicator.Preferably, safe xegregating unit is individual event isolation gap and vertical encryption device.Above-mentioned network service can be private network of electric power system network or extraneous operator private line network.
Collection control layer 1 receives the real-time information of the station level of jurisdiction generation of electricity by new energy factory (station), receive and respectively move metric data, real-time weather information etc., the operations staff can achieve a butt joint into the remote centralized monitoring and controlling of the wind energy turbine set ability of further dilatation (and possess) at collection control layer, and equipment control, operation optimization, the arrangement inspection and maintenance of being responsible for all wind energy turbine set are worked, for abnormal conditions, by operated from a distance, controlled, further optimize operation, generating efficiency is maximized.
The wind farm group centralized monitoring system take industry in real time, historical data base, SCADA system platform be basis, follow intensive, procedure, standardization, standardized theory and designed.Realize gathering RTU/ by system the information provided from equipment, electric flux terminal unit, wind power-driven integrated communication management terminal, video monitoring equipment etc. is provided, complete and dock into monitoring application functions such as the monitoring of wind energy turbine set booster stations, fan monitoring, air box change, electric energy metrical, status monitoring, video monitorings.
Collection control layer 1 should be reserved the standard communication interface called for group's infosystem, so that data are sent to general headquarters of group infosystem by renting the special communication network after arrangement is optimized.
Collection control layer 1 is for realizing above-mentioned functions, and it is concrete comprises the monitoring client 11 of being monitored for the data to the collection terminal collection and the control end 12 that sends steering order.Above-mentioned monitoring client 11 comprises monitor workstation 111, maintenance work station 112, gps clock 113, data acquisition server 114, data storage server 115, network server 116 and output unit 117.Control end 12 comprises control operation station 121 and controls SCADA server 122.It is further to strengthen security of centralized control system, and monitoring client 11 also comprises warning device 118, this warning device at least comprise that audible alarm, light are reported to the police or language alarm one of them.
For the course of work to above-mentioned wind energy turbine set centralized control system conducts further description, the application also provides the principle of work of the centralized control system of wind energy turbine set:
The device talks such as centralized control system and on-the-spot booster stations supervisory system, fan monitoring system, reactive power compensator obtain real time execution information, and the suitable Adoption Network pattern of data communication, also can adopt serial interface communication mode.By safe xegregating unit, real time data is uploaded to main station system by power dispatch data network, receive regulating control command from main website simultaneously, be transmitted to fan monitoring system, reactive power compensator etc. and carry out distant place regulation and control.The centralized control system basic function comprises: data acquisition, data processing, data storage, warning processing, time synchronized, trend curve, Report Server Management, real time monitoring, control in real time, data counting statistics, data-interface, security protection etc. possess network interconnection ability.
The station level function:
The main configuration communication supervisor in wind field substation, for gathering booster stations in wind field, blower fan group, watt metering system information, transfer to control center after data are processed, and mission control center is to the steering order of wind field equipment.
Collection control layer function:
1.1.1 data acquisition and monitoring
The data acquisition type of system is divided into analog quantity and switching value.Analog quantity comprises the actual measured amount of the non-electric simulation amounts such as the electric simulation amounts such as voltage, electric current and power and rotating speed, wind speed, wind direction, oil level, vibration, displacement, temperature.Switching value comprises two kinds of the non-interrupt switch amounts such as status signal of position signalling, the unit equipment of the interrupt switch amounts such as the actuating signal of trouble-signal, isolating switch and important relay protection and all kinds of fault-signal, isolating switch and disconnector.Mainly comprise: data acquisition and processing (DAP), multi-source data processing, historical data processing, figure demonstration, calculating and statistics and system to the time etc.
1.1.2 security of operation function for monitoring
Production status to subordinate's wind energy turbine set carries out real time monitoring, shows in real time main operational factor and the equipment state of blower fan, transformer station by multiple surveillance styles such as production simulation figure, trend map, bar graph and parametric classification tables.Can carry out the real-time pictures configuration by tenderer's requirement.
System should adopt the monitoring interface based on the Web form, shows multiple graphical interfaces, and displaying contents comprises Real-time Collection, calculating, system estimation and the various dynamic and static operation information of manually inserting.
Man-machine interface based on real-time multi-task network-oriented technology and picture disply and operation:
Electric main wiring diagram: show substation bus arrangement figure or local wiring diagram, content comprises outlet, bus and relevant isolating switch thereof, isolation switch, grounding switch etc., and express running status, measurement parameter: P, Q, COS φ, V, I, F, the position of tap gear positions etc. and selected " distant place/local operation " in a relevant distant place/show respectively everywhere on the spot.Operations staff or slip-stick artist can edit the operating mode reports such as operation, test, ground connection, locking of each equipment with the interactive mode of online keyboard input, to these reports, can modify, retrieve, show, print.
Blower fan matrix diagram, separate unit blower fan figure: show the information such as wind speed, wind direction, active power.
Displaying contents: the general data of whole wind energy turbine set general data and single unit;
The service data of single unit at least comprises following content:
The running status of-single unit, comprise start, shutdown, tuning, hand/situations such as automatic control.
-every typhoon power generator group, the useful power that the kW of take is unit.
-every typhoon power generator group, the generated energy that the kWh of take is unit.
The electric quantity consumption of-every typhoon power generator group.
The wind speed and direction that the wind gage in-every cabin and weathervane show.
The environment temperature that-temperature sensor records on wind power generating set.
-every typhoon power generator group belongs to the voltage and current of failure message.
The temperature of generator, gear case and slow-speed shaft on-every typhoon power generator group.
The major parameters such as the voltage that the corresponding case of-every typhoon power generator group becomes, electric current, temperature, oil level.
The availability of-every Fans and whole wind energy turbine set.
-artificial start-stop wind power generating set, record down period (time of origin, duration and number of times).
-due to the start-stop record of every typhoon power generator group of environment temperature reason of changes, down period (time of origin, duration and number of times) and environment temperature.
-because surpassing the restriction wind speed, wind speed shuts down, record down period.
-because wind speed is shut down lower than the restriction wind speed, record down period.
The switching value of single unit, comprise that switch cubicle digital quantity input (oil pump overload, cooling overload, soft open bypass etc.), switch cubicle digital output (generator heating, gear oil pump etc.), cabin digital quantity input (left avertence, hydraulic pressure oil level etc.) etc.
The statistics of single unit, comprise bypass work times, driftage number of times etc.
The failure message of single unit, comprise communication failure and historical failure message.
Form regularly: the statement form demonstration is recorded and pressed to the time interval that in stand, the real-time information of operation needs by operation.
Trend curve: to the specified measurement value, can be by specific short period image data, and retained, minimumly retained for 3 years.And the demonstration interval that can select by operation person and the interval trend curve that shows.
Possess storage, analysis, printing, output function to image data and information.
1.1.3 control operation
System should be able to be achieved as follows operation:
The remote operation that isolating switch/disconnector is divided, closes;
The remote operation that compensation condenser is thrown, cut;
A distant place to on-load transformer tap changer is regulated;
A single blower fan distant place starts, shuts down, resets, becomes oar, limit power is controlled;
A blower fan distant place starts, shuts down and control in groups;
The distant place startup of whole wind field, shutdown and power are controlled;
The control authority of supervisory system is in control center, wind field substation and the control function of requirement more than all realizing in three grades on the spot.The priority of control is: be better than on the spot the wind field substation, the wind field substation is better than control center.
1.1.4 anti-misoperation locking
Collection control layer arranges microcomputer " five is anti-" locking main frame, interconnected by data dispatching net and regulated station " five is anti-" block sytem, realizes the data double-way exchange, meets a distant place, local operation.Anti-misoperation locking and operation order function: should there is the mistake of preventing and draw, close isolating switch; Prevent that on-load from drawing, closing disconnecting link; Prevent live connection of ground wire; Prevent from being with the ground wire power transmission; Prevent the function (five is anti-) of mistakenly entering charged chamber.Can be controlled, be judged and be analyzed operations staff's electrical equipment operation step, whether legal, reasonable, safe, correct to determine this operation.System should possess the Operating Guideline function, if improper operation occurs, this operation is carried out to locking, and prints demonstration information, for field operator's operation is provided convenience and safety assurance.
1.1.5 report to the police, process
Provide perfect function to guarantee timely discovery, location, warning and the recovery of various faults.System is monitored respectively all data-interfaces, model algorithm, to fault or abnormal occurrence, should take rational counter-measure automatically to eliminate fault, maintain the uninterrupted operation of system, to the fault that can not automatically eliminate or system resource, should reach alarm when not enough.
Report to the police and process minute two kinds of modes, a kind of is accident alarming, and another kind is that advance notice is reported to the police.The former comprises circuit breaker trip and protective device actuating signal that not operation causes.The latter comprises general device displacement, abnormal state information, out-of-limit/multiple limit of analog quantity, all parts of computer installation control system, the abnormal state of wall unit etc.
Can carry out acousto-optic, audio alert to the fault occurred at any time.Alarm content is presented at foremost, is convenient to the operations staff and checks alarm content.
1.1.6 sequence of events recording and emergency review
When transforming plant primary equipment breaks down, will cause relay protection action, circuit breaker trip, the sequence of events recording function should be by each device action order in event procedure, and the band markers records, stores, shows, prints, and generates logout report, supplies inquiry.System is preserved the sequence of events recording clause that is no less than 3 years.
Emergency review record is for analyzing the following period of time before and after accident, and important real-time parameter and SOE in the situation of change of particular moment, and deposit in and recollect in report text, press the customer requirements printout.The emergency review scope is at least front 5 frames of accident, 5 frames after accident.
1.1.7 picture generates and shows
System is supported the pictures such as wiring diagram, working condition chart, protection layout of equipment, telemeter, remote signalling table, supports with all metrical informations of different picture displies.Support trend, painted, animation, flicker and word to report to the police.Support historical, real-time tendency curve.The multiple display modes such as supporting rod figure, pie chart, digital watch meter.
There is the pel editing graph and make function, online editing, modification, definition, the generation that the user can all can be facilitated on arbitrary principal computer or man-machine workstation complete intuitively real-time pictures, delete, call and the function such as real-time data base connection.The various information that show on central station of floating dock operator station display offer the operations staff with forms such as form, figures.System provides visual in image graphical supervision and operation interface for the operator.Man-machine interface has unified pattern and characteristics, and demonstration, operation style on different operating system are in full accord.
System provides artwork integrated graphical modeling instrument, completes the drafting of figure and foundation and the maintenance of electric power system model.In the graphics edition process, support change, rollback, reform, copy, paste, pull, merge, split (attribute) operation.Support pel combination, the system of solutions, align, be uniformly distributed, formed objects etc. is arranged operation.The functions such as the translation of support figure, convergent-divergent, navigation (overall situation is dwindled), hawkeye (the local amplification).
The user can define the figure meta template of through engineering approaches as required flexibly, comprising: element figure definition, the definition of electric power pel, the definition of the pel technique of painting, pel tie point attribute definition, pel state display definition.For electric power figure meta template, the user can also define concatenate rule, the validity rule of figure meta template, as: can not connection type, can only connection type, can only the head end rule, can only the end rule etc.
System is supported the multiple modes of operation such as menu (comprising configurable right-click menu, tool bar), focus, directory tree; The various operations such as number are controlled, are listed, are manually put in support by picture, comprise that remote control, remote regulating, load tap changer lifting/lowering/urgency are stopped, fixed value adjusting, signal return, sequence control, negate, hanging earthing conductor are moved back, protect in batches remote control, the throwing of protection pressing plate, operate a switch, ration the power supply, overhaul, for dataway operation etc.
1.1.8 running log
The operational factor that the running log of wind energy turbine set comprises every typhoon group of motors, mainly comprise the monitoring variables such as line voltage, unit voltage, dynamo current, mains frequency, power factor, active power, reactive power, generated energy; The wind-force such as wind speed, wind direction parameter; The monitoring variable of the set states such as the voltage that in generator speed, wind speed round, gear case temperature, bearing temperature, generator-temperature detection, generator front and back bearings temperature, switch board, frequency converter temperature, environment temperature, gear case oil level, oil temperature, generator oil level, bearing oil level, hydraulic system oil level, case become, electric current, temperature, oil level.
1.1.9 report capability
System can arrange report form, selectes and will be presented on the parameter on form; Show form, comprise daily sheet, month form, year form of all remote measurement amounts of wind power generating set in each wind energy turbine set.And can printing reports.
Form regularly: the statement form demonstration record and pressed to the time interval that in wind energy turbine set, the real-time information of operation needs by operation.
Daily sheet: mean the statistical value of the real time data of 24 hour operation by the daily sheet form of customer requirements, and can look into the form in a week.
Month form: the load data record with the whole month forms a month form.Month form formed at the end of month, and can inquire about the moon form in a year.
Year form: form a year form by an annual moon form data recording, a year form formed at the year end, and can inquire about the year form in 2 years.
Electric weight daily sheet: mean the electric weight instantaneous value of whole day by the desired sheet format of power transformation, and can look into the form in a year.
The electric weight moon form: take sky is that the electric weight record of statistics electric substation's whole month of unit forms a month form.Form formed at the end of month, and can inquire about the form in a year.
1.1.10 clock synchronous
Gps clock of system configuration, while supporting the Big Dipper/GPS biconjugate, guarantee that the time synchronized of each workstation reaches the 1ms accuracy requirement.Supervisory system to the time interface Adoption Network to the time mode.
1.1.11 system autodiagnosis and recovery certainly
This centralized control system should have self diagnosis and self-healing function, and control center is in charge of the work such as diagnosis that the slip-stick artist of system can carry out all devices of whole supervisory system by the engineer work station, management, maintenance, expansion.
1.1.12 statistical study and query function
System is supported various conventional computings, is derived from and calculate and automatic computing power, and has very high arithmetic speed.There is conventional computing and statistical computation function, carry out statistical computation according to the method for user's appointment, comprise according to all kinds of capacity of fan condition counting statistics, quality of voltage statistics, rate of load condensate, out-of-limit situation and equipment on-line time, off-line time and blower fan and throw and move back number of times etc.
System can be inquired about blower fan historical failure, historical data, daily record etc., can carry out fault alarm statistics and the fault statistics of equipment.And can print.Can carry out overall treatment, statistical study to all wind field production datas of the subordinate of company.
According to the mode of customer requirements, provide its required process data and calculating, analysis result to other application system, meet the requirement that application system or production management department are gathered, inquire about and process process data fast and efficiently.Contrast by analysis, propose prioritization scheme, thereby improve the wind energy turbine set operational efficiency.
1.1.13 operation trend analysis
Take the data such as realtime power, operating states of the units, survey wind data and cloud condition figure as basis, rolling forecast wind energy turbine set power, power variation rate operation trend.Real power curve to every Fans is drawn automatically, and compares with the typical curve that blower fan producer provides, and fully excavates the potentiality of blower fan, improves blower fan rate at full capacity.
Blower fan, each equipment operational factor of booster stations are carried out to record, comprise temperature, vibration, pressure etc., and carry out trend analysis, can check at any time equipment in real time or the historical trend curve.
1.1.14 short-term, ultra-short term wind power prediction
Wind energy turbine set wind power prediction system refers to take the numerical value weather forecast as basis, build complete Database Systems, utilize various communication interfaces to gather wind energy turbine set collection control and electric energy management system (EMS) data, adopt artificial intelligence neural networks, particle group optimizing, the purification of wind power signal numerical value, high-performance spatiotemporal mode sorter and data mining algorithm to carry out modeling to each wind energy turbine set, the human-computer interaction interface of hommization is provided, wind energy turbine set is carried out to power prediction, for the wind energy turbine set management work provides supplementary means.The quantitative test that the support of wind power prediction function is exerted oneself with various correlative factors to wind power generation, provide multiple Forecasting Methodology, and realizing can be with the accurately predicting of generating capacity to following 5 minutes-1 hour, next day to following many days per period wind-powered electricity generations.The short-term wind power prediction function is supported the quantitative test that wind power generation is exerted oneself with various correlative factor correlativitys, and multiple Forecasting Methodology is provided, and realizing can be with the accurately predicting of generating capacity to next day to following many days per period wind-powered electricity generations.Existing company is in-service, all possess the wind power prediction function building wind energy turbine set, collection control layer when commencement of commercial operation, wind power prediction simultaneously can seamless branches to collection control layer.
The data acquisition server that the raw data of wind energy turbine set crosswind power system is obtained by being deployed in outer net obtains the data of anemometer tower and numerical weather forecast from outer net, by the reverse isolation device, above-mentioned data are delivered to database server, obtain the real time datas such as unit, current collection line by fire wall from wind farm monitoring system, offer application server and analyze use.The predicted data of wind energy turbine set crosswind power system is uploaded to province by vertical encryption device and transfers in row analysis examination.
The science operation that the wind power prediction system is wind energy turbine set provides important information.By surveying wind data, be that whether up to standard the making more reasonably of wind field target generated output explained; Make rational maintenance of fan plan by seven days power predictions, reduce and abandon wind; Providing foundation by the operation plan that power prediction is electrical network accurately, is the wind farm grid-connected technology barrier of putting down.
The wind farm power prediction system should be set up according to data such as the historical power of wind energy turbine set, historical wind speed, topography and geomorphology, numerical weather forecast, running of wind generating set states the forecast model of Power Output for Wind Power Field, using the input as model of wind speed, power and numerical weather forecast data, in conjunction with equipment state and the operating condition of wind energy turbine set unit, obtain the wind energy turbine set output power in future.According to the difference of predicted time yardstick and the real needs of practical application, adopt multi-method and model, form the optimum prediction strategy.
1) can predict that 96 of this wind energy turbine set 24 hours are exerted oneself, following three days 72 hours short term power and 0-4 hour ultra-short term power.The power prediction function is divided into short term power prediction and ultra-short term power prediction, and short-term and ultra-short term prediction should comprise degree of confidence scope curve.
2) the short term power prediction should be able to be predicted the wind energy turbine set power curve of following three days 72 hours, and temporal resolution is 15 minutes.While due to the OPS system of economize adjusting, formulating a few days ago the wind-powered electricity generation generation schedule, take the current collection line as unit, therefore require the prediction of wind energy turbine set short-term wind-electricity power should take the current collection line and report the short-term wind-electricity power prediction curve as unit.The generating capacity of short-term forecasting reply wind energy turbine set is predicted, takes into full account special circumstances, predicts the outcome and does not comprise the situation of rationing the power supply; Should be able to be to economizing the capacity of starting shooting next day (being non-maintenance capacity) that reports of adjusting.
3) prediction a few days ago should be able to arrange start-up time and the number of times of prediction every day; Support automatically start prediction and manually boot prediction.
4) prediction of 0-4 hour ultra-short term can the predict future power curve of 4 hours, and temporal resolution is 15 minutes; 0-4 hour ultra-short term is predicted as automatic rolling and carries out, and prediction in every 15 minutes 1 time, automatically revise and predict the outcome in real time.Ultra-short term should be considered according to various information summaries, predicts the actual power result, comprises and rationing the power supply.
5) consider to exert oneself limited and fan trouble to the impact of wind energy turbine set generating capacity, support to ration the power supply and the power prediction in particular cases such as fan trouble.
6) consider the impact of wind energy turbine set installation dilatation on generating, support the power prediction of the wind energy turbine set in constantly enlarging.
7) curve obtained for system prediction, can manually to predicting the outcome, be revised, and the reservation operations daily record is for future reference.
8) can carry out estimation of error to prediction curve, predict the error range of given degree of confidence.
9) generation schedule that can receiving scheduling.
10) can report required data to prognoses system main website end, comprise and predict 96 power curves a few days ago, 4 hours rolling forecast power curves, fan operation status data, anemometer tower real time data, start 96 of next day capacity datas etc.
11) can arrange and call time, support automatically to report and manually report.Automatic or manual is uploaded to the dispatching of power netwoks main website on request.
12) the prognoses system precision meets State Grid Corporation of China and North China Power Telecommunication Network company related request.
13) system Construction should meet the requirement of electric power secondary system security protection regulation, with other application system and data network access device, has good interface.
14) the anemometer tower real time data should be uploaded to the dispatching of power netwoks main website by the wind power prediction system.
1.1.14.1 short term power forecast function
Before setting-up time, calculate and report afterwards 72 hours every day, by 15 minutes with by the one-hour rating forecast; The short-term forecasting result, precision > 80%; The short term power prediction and calculation rolling cycle is fixed as 24 hours.
1.1.14.2 ultra-short term power prediction function
Within every 15 minutes, roll once, provide following 4 hours by 15 minutes power predictions, precision 90%.
The human intervention function 1.1.14.3 predict the outcome
When the impact occurred because of various uncertain factors, as undesired as blower fan running suddenly etc., and predicting the outcome while larger error having occurred of causing requires the wind power prediction system that the human intervention process can be provided, so that the operator can carry out manual correction in time to predicting the outcome.In order to guarantee the authenticity of prediction, require the wind power prediction system that the future anticipation modified result only is provided, while when predicting the outcome, becoming history, do not allow to carry out any modification.
1.1.15 system management
Special-purpose picture is provided, the state of all devices in system is managed, comprise the state of system host, the condition managing of communication channel.
1.1.16 subscriber management function
The user authority management function is provided, user's name, password and authority can be set respectively.The user is divided into as system manager, operator and three kinds of authorities of general user.
1.1.17 expanded function
The operations such as system can be added the information of wind field and blower fan, deletion, modification, inquiry.The information spinner of blower fan will comprise numbering, title, affiliated wind field, affiliated agreement, longitude, latitude, connection front end processor, group number, controller numbering, description etc.
Adopt data mining technology to be analyzed mass data: the statistical property of separate unit blower fan, the statistical property of many Fans, the discreteness of statistics fan characteristic.
Data fusion and contrast: the different manufacturers blower fan is the comparative analysis of power under the same conditions, thereby learns that the Fan Product cost performance of which producer is high; The comparative analysis of generated energy under the same conditions of same producer blower fan, thus analyze the discreteness of the Fan Product of this producer.
System has the function communicated with following system: with the data communication of wind electric field blower group supervisory system; With wind energy turbine set booster stations SCADA system data communication; Data communication with electrical metering system; Data communication with ups system; Data communication with the wind power prediction system; Data communication with the chain of command in production; Data communication with status monitoring and expert system; System is reserved the interface with external system; Should reserve expansion interface with the data communication system of electric power dispatching system, so that the access wind energy turbine set that puts into operation of later stage.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (10)
1. a wind energy turbine set centralized control system, comprise collection control layer (1) and station level (2), it is characterized in that, between described collection control layer (1) and station level (2), by communicator, connects;
Described station level (2) comprises collection terminal (21) for gathering equipment operational factor in wind energy turbine set and passes to collection control layer (1) for the parameter that collection terminal (21) is gathered, and the control actuating station (22) of carrying out the steering order that collection control layer (1) sends;
Described collection control layer (1) comprises the monitoring client (11) that the data for described collection terminal (21) is gathered are monitored and the control end (12) that sends steering order.
2. wind energy turbine set centralized control system according to claim 1, is characterized in that, described communicator is network service or serial communication.
3. wind energy turbine set centralized control system according to claim 1, is characterized in that, is provided with safe xegregating unit on described communicator.
4. wind energy turbine set centralized control system according to claim 1, it is characterized in that, described monitoring client (11) comprises monitor workstation (111), maintenance work station (112), gps clock (113), data acquisition server (114), data storage server (115), network server (116) and output unit (117).
5. wind energy turbine set centralized control system according to claim 1, is characterized in that, described monitoring client (11) also comprises warning device (118).
6. wind energy turbine set centralized control system according to claim 1, is characterized in that, described warning device (118) at least comprise that audible alarm, light are reported to the police or language alarm one of them.
7. wind energy turbine set centralized control system according to claim 1, is characterized in that, described control end (12) comprises control operation station (121) and controls SCADA server (122).
8. wind energy turbine set centralized control system according to claim 1, is characterized in that, described control actuating station (22) is preposition industrial computer.
9. wind energy turbine set centralized control system according to claim 1, is characterized in that, described safe xegregating unit comprises individual event isolation gap and vertical encryption device.
10. wind energy turbine set centralized control system according to claim 1, is characterized in that, the equipment in described wind energy turbine set comprises blower fan, booster stations, watt metering system.
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Address after: 100192, Haidian District, Beijing, 8 clear road 1, 1-14, nine, 901 Patentee after: BEIJING EAST ENVIRONMENT ENERGY TECHNOLOGY CO.,LTD. Address before: 100192, A, 8, science and Technology Fortune Center, No. 201 Xue Qing Road, Beijing, Haidian District Patentee before: East Environment Energy (Beijing) Technology Co.,Ltd. |
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