CN110620400A - Electric energy conversion equipment and intelligent power distribution network friendly interaction technology system - Google Patents
Electric energy conversion equipment and intelligent power distribution network friendly interaction technology system Download PDFInfo
- Publication number
- CN110620400A CN110620400A CN201910945034.0A CN201910945034A CN110620400A CN 110620400 A CN110620400 A CN 110620400A CN 201910945034 A CN201910945034 A CN 201910945034A CN 110620400 A CN110620400 A CN 110620400A
- Authority
- CN
- China
- Prior art keywords
- distribution network
- power distribution
- electric energy
- energy conversion
- conversion equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009826 distribution Methods 0.000 title claims abstract description 149
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 86
- 230000003993 interaction Effects 0.000 title claims abstract description 63
- 238000005516 engineering process Methods 0.000 title claims description 75
- 230000009466 transformation Effects 0.000 claims abstract description 15
- 238000010248 power generation Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 10
- 230000006872 improvement Effects 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000005457 optimization Methods 0.000 claims description 5
- 230000002411 adverse Effects 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000003908 quality control method Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 abstract description 6
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000011160 research Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a technical system for friendly interaction of electric energy conversion equipment and an intelligent power distribution network, relates to the fields of power generation, power transmission, power transformation, power distribution and power utilization of electric power, and aims to comprehensively achieve the aims of safety, high quality and intelligence. The system solves the series problems of low flexibility and interactivity, insufficient power supply reliability of the power distribution network, poor electric energy quality of users and the like when new energy is accessed, thereby guiding and developing various electric energy conversion devices with friendly interaction capacity and promoting the development of the intelligent power distribution network.
Description
Technical Field
The invention relates to the fields of power generation, power transmission, power transformation, power distribution and power utilization of electric power, in particular to a technical system for friendly interaction of electric energy conversion equipment and an intelligent power distribution network.
Background
In the intelligent power distribution network, in order to utilize electric energy more flexibly, various conversions are continuously carried out on the electric energy by a power supply, a power grid and a user according to needs, and according to statistics, more than 70% of the electric energy in the world is used after being converted. Therefore, a large number of electric energy conversion devices such as new energy power generation devices, energy storage devices, transformers, rectifying devices, inverter devices, electric vehicle charging piles and the like exist in each level of the source-network-load of the intelligent power distribution network. By carrying out various transformations on the amplitude/frequency/phase of the voltage/current, the electric energy transformation equipment and the intelligent power distribution network have close interaction, so that the controllability and the intelligence level of the intelligent power distribution network are improved, and meanwhile, new challenges are brought to the safe, reliable and high-quality operation of the intelligent power distribution network. Meanwhile, the electric energy conversion equipment is used as an important carrier for links such as electric energy production, transmission and use, whether interaction with the intelligent power distribution network is friendly or not has great influence on the level of core indexes of the intelligent power distribution network such as power supply reliability, voltage qualification rate and the like, and even threatens the safety of users and power grids. With the continuous development of intelligent power distribution network construction, no matter energy structure transformation is promoted, China is supported to manufacture and upgrade, or the trend of people to good life is met, the demand of flexibly transforming electric energy is increased day by day, the quantity and proportion of electric energy transformation equipment in the intelligent power distribution network are continuously improved, the interaction degree between the electric energy transformation equipment and the intelligent power distribution network is more and more intimate, the interaction process is more and more complex, and the interaction influence is more and more deep. Therefore, the research on how the friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is better carried out is very important in practical significance and development significance.
At the present stage, the phenomenon that the interaction between the electric energy conversion equipment and the intelligent power distribution network is not friendly enough at three levels of source-network-load still generally exists, and the main embodiment is as follows:
(1) in the aspect of distributed power supply access, the connection and interaction between equipment for new energy power generation, energy storage and the like and a power distribution network are not tight enough; a plurality of distributed power supplies are connected to a power distribution network in parallel through an inverter, and circulation and coupling resonance phenomena are easily caused; due to the weak overcurrent capacity of the inverter, the new energy power generation system is difficult to realize safe and stable operation under power grid disturbance.
(2) In the aspect of operation of a power distribution network, the traditional power transformer cannot meet the requirements of users on electric energy customization and electric energy interconnection and intercommunication of different forms; part of electric energy conversion equipment also has the problems of single function and low utilization rate, thereby causing poor running economy; more new technologies and new equipment are needed to continuously improve the flexible operation capability and the power supply reliability of the power distribution network.
(3) In the aspect of power consumption at a load side, the electric energy conversion equipment and a power distribution network are difficult to efficiently interact; part of the electric energy conversion equipment is connected to cause the electric energy quality of the power distribution network to be degraded; the capability of electric energy conversion equipment in industrial and mining enterprises for resisting disturbance of the power distribution network needs to be further improved.
Analysis finds that the reasons influencing friendly interaction of the electric energy conversion equipment and the intelligent power distribution network mainly gather in three aspects of equipment safety, index goodness, interaction intellectualization and the like in the interaction process of the two parties. The current researches on the interaction problem between the two mainly comprise the following steps: the method comprises the steps of researching interaction mechanism of specific electric energy conversion equipment and a power distribution network, researching function strengthening and performance improvement of the specific electric energy conversion equipment, researching power distribution network operation strategy and supporting equipment based on power supply reliability improvement, researching technology and equipment based on power distribution network electric energy quality improvement and the like. The research work does not completely start from the perspective of friendly interaction of the electric energy conversion equipment and the intelligent power distribution network, does not comprehensively consider the targets of safety, high quality, intelligence and the like in the interaction process, and does not develop systematic research work of friendly interaction technology and equipment under three levels of source-network-load.
Therefore, the important key technical problem to be solved urgently is achieved by friendly interaction between the electric energy conversion equipment and the intelligent power distribution network as an entry point, the aims of safety, high quality and intelligence are comprehensively achieved, a technical system for friendly interaction between the electric energy conversion equipment and the intelligent power distribution network at three levels of source-network-load is provided, the core problems of the research on the friendly interaction key technology of the electric energy conversion equipment and the intelligent power distribution network and the development of core equipment are broken through, and the method has very important significance for promoting the technical progress of the intelligent power distribution network.
Disclosure of Invention
The invention aims to provide a technical system for friendly interaction of electric energy conversion equipment and an intelligent power distribution network, so that the defects of low flexibility and interactivity, insufficient power supply reliability of the power distribution network, poor electric energy quality of a user and the like during new energy access are overcome.
In order to achieve the purpose, the invention provides a technical system for friendly interaction of electric energy conversion equipment and an intelligent power distribution network, three technical subsystems of friendly access, friendly support and friendly electricity utilization are formed by using power electronics, automatic control, information, network technology and equipment and are respectively applied to a power supply side, a power grid side and a load side, so that the performance and the function of production, transmission, conversion and use links of electric energy in the intelligent power distribution network are improved, and the aims of safety, high quality and intelligence of the electric energy conversion equipment and the intelligent power distribution network in the interaction process are fulfilled;
the safety of the electric energy conversion equipment and the intelligent power distribution network in the interaction process is to improve the electric energy conversion equipment, reduce the adverse effect of the electric energy conversion equipment on the operation of the power distribution network and enhance the resistance of the electric energy conversion equipment to external risks;
the high quality of the friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is that the indexes of the electric energy conversion equipment are better, and the improvement of the related indexes of the power supply reliability and the electric energy quality of the power distribution network is promoted;
the intelligent friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is to improve the self-adaption, self-adjustment and information interaction capabilities of the electric energy conversion equipment in the running process of the power distribution network, so that the overall intelligent level of the power distribution network is promoted to be improved.
Further, on the power supply side, aiming at the problems of weak flexibility and interactivity and low safety and reliability when new energy power generation equipment is connected into an intelligent power distribution network, factors of synchronous grid connection capacity when the new energy power generation equipment is connected, active regulation capacity after connection, high-density multi-machine parallel stable operation capacity and safety ride-through capacity when the power distribution network is in fault are considered, three common technologies of stable operation of new energy for resisting disturbance of the power distribution network, high-quality interaction of the new energy and the power distribution network and plug and play of the new energy connected into the power distribution network are comprehensively formed, three targets of safety, high quality and intelligence are respectively realized, and a flexible and interactive friendly access key technology subsystem is formed.
Furthermore, on the power grid side, from the perspective of power supply reliability of power optimized distribution and power transformation operation, aiming at the problems that part of electric energy conversion equipment in an intelligent power distribution network is poor in operation economy, weak in active blocking capability of power supply hidden dangers, difficult to intelligently interact with the power distribution network and the like, a power distribution network power supply hidden danger active blocking technology, a common characteristic combination and multi-mode control technology of the electric energy conversion equipment and an energy flexible balance technology of an alternating current and direct current power distribution network are comprehensively formed, three aims of safety, high quality and intelligence are respectively achieved, and a friendly support key technology subsystem of high-reliability power supply of the power distribution network is formed.
Furthermore, on the load side, from the aspects of improving the electric energy quality and the performance of the equipment, aiming at the problem of electric energy quality degradation caused by the fact that part of electric energy conversion equipment is connected into the power distribution network, starting from the aspects of high-quality voltage control, high-current quality control, self-adaptive control of the electric energy conversion equipment and the like of the power distribution network, a multi-target compensation control technology of high current quality and a self-adaptive control technology of anti-power grid disturbance, a self-adaptive control technology of minimum harmonic injection of the electric energy conversion equipment and an optimization control technology of high-quality voltage are comprehensively formed, three targets of safety, high quality and intelligence are respectively realized, and a friendly electricity utilization key technology subsystem facing high electric energy quality is formed.
Further, the power electronics, automation, information and network technologies and equipment include: the distributed virtual synchronous generator adopts a stable operation technology that new energy resists disturbance of a power distribution network, a high-quality interaction technology of the new energy and the power distribution network, a plug-and-play technology that the new energy is connected into the power distribution network, a three-port power electronic transformer adopts a power supply hidden danger active blocking technology of the power distribution network, an alternating current and direct current power distribution network energy flexible balance technology and a power distribution network high-quality voltage optimization control technology, a multifunctional controllable modular solid-state current limiter adopts a common characteristic combination of electric energy conversion equipment and a multi-mode control technology, a high-voltage static var generator adopts a multi-target compensation technology of high current quality and an adaptive control technology that harmonic injection of the electric energy conversion equipment is minimum, and a high-voltage frequency converter adopts an adaptive.
Compared with the prior art, the invention has the following beneficial effects:
the technical system for friendly interaction of the electric energy conversion equipment and the intelligent power distribution network provided by the invention has the advantages that the aims of safety, high quality and intelligence are comprehensively achieved, specific technologies corresponding to the three aims are respectively summarized from the three aspects of a power supply side, a power grid side and a load side, three key technical subsystems of flexible and interactive new energy friendly access, friendly support for high-reliability power supply of the power distribution network and friendly electricity utilization facing high electric energy quality are comprehensively formed, the core problems of the research on the friendly and interactive key technology of the electric energy conversion equipment and the intelligent power distribution network and the development on core equipment can be broken through, and the technical system has very important significance for promoting the technical progress of the intelligent power distribution network. The system solves the series of problems of low flexibility and interactivity, insufficient power supply reliability of the power distribution network, poor power quality of users and the like when new energy is accessed, comprehensively forms various capabilities which are required to be possessed by friendly interaction of the electric energy conversion equipment and the intelligent power distribution network, guides and develops the various electric energy conversion equipment with the friendly interaction capability, and promotes the development of the intelligent power distribution network.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a technical system for friendly interaction of an electric energy conversion device and a smart distribution network according to the present invention;
fig. 2 is a hierarchical structure diagram of the friendly interaction technology system of the electric energy conversion equipment and the intelligent power distribution network.
Detailed Description
The technical solutions in the present invention are 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.
As shown in fig. 1, the technical system for friendly interaction of the electric energy conversion device and the intelligent power distribution network forms three technical subsystems of friendly access, friendly support and friendly power utilization by using power electronics, automatic control, information, network technology and equipment, and is respectively applied to a power supply side, a power grid side and a load side, so that the performance and functions of the production, transmission, conversion and use links of electric energy in the intelligent power distribution network are improved, and the aims of safety, high quality and intelligence of the electric energy conversion device and the intelligent power distribution network in the interaction process are fulfilled;
on three levels of friendly access of new energy, friendly support of power distribution network operation and friendly power utilization of load side, safety, high quality and intelligence are specific targets for realizing friendly interaction between the electric energy conversion equipment and the intelligent power distribution network, and are specific comments on friendly interaction connotations; friendly access is that new energy access equipment needs to have active power distribution and regulation capacity to realize stable power supply, the new energy access equipment needs to have self-adaptive operation capacity to ensure system stability under the background of high-density new energy grid connection, and the new energy access equipment needs to have the capacity of actively switching current limiting to protect self safety when a power grid fails. The friendly support is that power distribution equipment needs to have the capacity of power active distribution to realize trend optimization, the capacity of power quality isolation and blocking of a power distribution network and a load side is used for ensuring that the equipment on the network side and the equipment on the load side are not damaged, and the equipment needs to have various functions and flexible switching capacity to improve the overall operation economy. Friendly power utilization is that the electric energy conversion equipment needs to have active voltage control capability to ensure high-quality power supply, and related electric energy conversion equipment is needed to solve various electric energy quality problems of the power distribution network to ensure good power utilization, and the electric equipment also needs to improve the performance of the electric equipment to reduce the pollution to the electric energy quality of the power distribution network.
The safety of the electric energy conversion equipment and the intelligent power distribution network in the interaction process is to improve the electric energy conversion equipment, reduce the adverse effect of the electric energy conversion equipment on the operation of the power distribution network and enhance the resistance of the electric energy conversion equipment to external risks;
the high quality of friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is that the indexes of the electric energy conversion equipment are better, and the improvement of the related indexes such as power supply reliability, electric energy quality and the like of the power distribution network is promoted;
the intelligent friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is to improve the self-adaption, self-adjustment and information interaction capabilities of the electric energy conversion equipment in the operation process of the power distribution network, so that the overall intelligentization level of the power distribution network is promoted to be improved.
As shown in fig. 2, at the power supply side, aiming at the problems of weak flexibility and interactivity, low safety and reliability and the like when new energy power generation equipment is connected into a power distribution network, factors such as synchronous grid connection capability when new energy power generation equipment is connected, active regulation capability after connection, high-density multi-machine parallel stable operation capability, safety ride-through capability when the power distribution network fails are considered, three common technologies such as stable operation of new energy for resisting disturbance of the power distribution network, high-quality interaction of new energy and the power distribution network, plug and play of new energy connected into the power distribution network are comprehensively formed, three targets of safety, high quality and intelligence are respectively realized, and a flexible and interactive friendly access key technology subsystem is formed.
On the side of a power grid, from the perspective of power supply reliability of power optimized distribution and power transformation operation, aiming at the problems that part of electric energy conversion equipment in an intelligent power distribution network is poor in operation economy, weak in active blocking capability of power supply hidden dangers, difficult to intelligently interact with the power distribution network and the like, a power distribution network power supply hidden danger active blocking technology, a common characteristic combination and multi-mode control technology of the electric energy conversion equipment and an energy flexible balance technology of an alternating current and direct current power distribution network are comprehensively formed, three targets of safety, high quality and intelligence are respectively achieved, and a friendly support key technology subsystem of high-reliability power supply of the power distribution network is formed.
On the load side, from the aspects of improving the power quality and the performance of equipment, aiming at the problem of power quality degradation caused by the fact that part of power transformation equipment is connected into a power distribution network, starting from the aspects of high-quality voltage control, high-current quality control, self-adaptive control of the power transformation equipment and the like of the power distribution network, a multi-target compensation control technology of high current quality and an adaptive control technology of anti-power grid disturbance, an adaptive control technology of minimum harmonic injection of the power transformation equipment and an optimal control technology of high-quality voltage are comprehensively formed, three targets of safety, high quality and intelligence are respectively realized, and a friendly power utilization key technology subsystem facing high power quality is formed.
Power electronics, automatic control, information and network technology and equipment include: the distributed virtual synchronous generator adopts a stable operation technology that new energy resists disturbance of a power distribution network, a high-quality interaction technology of the new energy and the power distribution network, a plug-and-play technology that the new energy is connected into the power distribution network, a three-port power electronic transformer adopts a power supply hidden danger active blocking technology of the power distribution network, an alternating current and direct current power distribution network energy flexible balance technology and a power distribution network high-quality voltage optimization control technology, a multifunctional controllable modular solid-state current limiter adopts a common characteristic combination of electric energy conversion equipment and a multi-mode control technology, a high-voltage static var generator adopts a multi-target compensation technology of high current quality and an adaptive control technology that harmonic injection of the electric energy conversion equipment is minimum, and a high-voltage frequency converter adopts an adaptive.
In conclusion, the invention provides a technical system for friendly interaction of electric energy conversion equipment and an intelligent power distribution network, aims of safety, high quality and intelligence are comprehensively achieved, a key technology for friendly interaction of two parties at three levels of a power side, a power network side and a load side is provided, a flexible and interactive technical subsystem of friendly new energy access, friendly support for high-reliable power supply of the power distribution network, friendly power utilization facing high electric energy quality and the like is formed, and series problems of low flexibility and interactivity, insufficient power supply reliability of the power distribution network, poor electric energy quality of users and the like during new energy access can be solved, so that various electric energy conversion equipment with friendly interaction capacity is guided and developed, and a series of researches integrating technology, standards, equipment and application are realized.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (5)
1. The electric energy conversion equipment and intelligent power distribution network friendly interaction technology system is characterized in that: by using power electronics, automatic control, information and network technologies and equipment, three technical subsystems of friendly access, friendly support and friendly electricity utilization are formed and are respectively applied to a power supply side, a power grid side and a load side, so that the performance and functions of production, transmission, transformation and use links of electric energy in the intelligent power distribution network are improved, and the aims of safety, high quality and intelligence of electric energy transformation equipment and the intelligent power distribution network in the interaction process are fulfilled;
the safety of the electric energy conversion equipment and the intelligent power distribution network in the interaction process is to improve the electric energy conversion equipment, reduce the adverse effect of the electric energy conversion equipment on the operation of the power distribution network and enhance the resistance of the electric energy conversion equipment to external risks;
the high quality of the friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is that the indexes of the electric energy conversion equipment are better, and the improvement of the related indexes of the power supply reliability and the electric energy quality of the power distribution network is promoted;
the intelligent friendly interaction between the electric energy conversion equipment and the intelligent power distribution network is to improve the self-adaption, self-adjustment and information interaction capabilities of the electric energy conversion equipment in the running process of the power distribution network, so that the overall intelligent level of the power distribution network is promoted to be improved.
2. The technical system for friendly interaction of electric energy conversion equipment and a smart distribution network according to claim 1, characterized in that: on the power supply side, aiming at the problems of weak flexibility and low safety and reliability when new energy power generation equipment is connected into an intelligent power distribution network, factors of synchronous grid connection capacity when the new energy power generation equipment is connected, active regulation capacity after the new energy power generation equipment is connected, high-density multi-machine parallel connection stable operation capacity and safety ride-through capacity when the power distribution network is in fault are considered, three common technologies of stable operation of new energy for resisting disturbance of the power distribution network, high-quality interaction of the new energy and the power distribution network and plug and play of the new energy connected into the power distribution network are comprehensively formed, three targets of safety, high quality and intelligence are respectively realized, and a flexible and interactive friendly access key technology subsystem is formed.
3. The technical system for friendly interaction of electric energy conversion equipment and an intelligent power distribution network according to claim 1 is characterized in that on the power grid side, from the perspective of power supply reliability of power optimized distribution and power transformation operation, aiming at the problems that part of electric energy conversion equipment in the intelligent power distribution network is poor in operation economy, weak in active blocking capability of power supply hidden dangers, difficult to intelligently interact with the power distribution network and the like, three aims of safety, high quality and intelligence are respectively achieved by comprehensively forming an active blocking technology of power supply hidden dangers of the power distribution network, a common characteristic combination and multi-mode control technology of the electric energy conversion equipment and an energy flexible balance technology of an alternating current and direct current power distribution network, and a friendly support key technical subsystem for high-reliability power supply of the power distribution network is.
4. The technical system for friendly interaction of the electric energy conversion equipment and the intelligent power distribution network according to claim 1 is characterized in that on a load side, from the viewpoint of improving the electric energy quality and the performance of the equipment, aiming at the problem of electric energy quality degradation caused by the fact that part of the electric energy conversion equipment is connected into the power distribution network, from the aspects of high-quality voltage control, high-current quality control, self-adaptive control of the electric energy conversion equipment and the like of the power distribution network, a multi-target compensation control and anti-power grid disturbance adaptive control technology of the high-current quality, an adaptive control technology with minimum harmonic injection of the electric energy conversion equipment and an optimal control technology of the high-quality voltage are comprehensively formed, three targets of 'safety, high quality and intelligence' are respectively realized, and a friendly electricity utilization key technical subsystem facing the high.
5. The technical system for friendly interaction of electric energy conversion equipment and a smart distribution network according to claim 1, characterized in that: the power electronics, automatic control, information and network technology and equipment include: the distributed virtual synchronous generator adopts a stable operation technology that new energy resists disturbance of a power distribution network, a high-quality interaction technology of the new energy and the power distribution network, a plug-and-play technology that the new energy is connected into the power distribution network, a three-port power electronic transformer adopts a power supply hidden danger active blocking technology of the power distribution network, an alternating current and direct current power distribution network energy flexible balance technology and a power distribution network high-quality voltage optimization control technology, a multifunctional controllable modular solid-state current limiter adopts a common characteristic combination of electric energy conversion equipment and a multi-mode control technology, a high-voltage static var generator adopts a multi-target compensation technology of high current quality and an adaptive control technology that harmonic injection of the electric energy conversion equipment is minimum, and a high-voltage frequency converter adopts an adaptive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910945034.0A CN110620400A (en) | 2019-09-30 | 2019-09-30 | Electric energy conversion equipment and intelligent power distribution network friendly interaction technology system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910945034.0A CN110620400A (en) | 2019-09-30 | 2019-09-30 | Electric energy conversion equipment and intelligent power distribution network friendly interaction technology system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110620400A true CN110620400A (en) | 2019-12-27 |
Family
ID=68925171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910945034.0A Pending CN110620400A (en) | 2019-09-30 | 2019-09-30 | Electric energy conversion equipment and intelligent power distribution network friendly interaction technology system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110620400A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202798003U (en) * | 2012-09-28 | 2013-03-13 | 广州润能环保科技有限公司 | Power grid flexible balanced intelligent power saving device |
| CN108134393A (en) * | 2018-01-29 | 2018-06-08 | 华中科技大学 | A kind of Regional Energy interconnection distribution network system based on electric energy route technology |
| CN109586343A (en) * | 2018-12-29 | 2019-04-05 | 国网天津市电力公司电力科学研究院 | Photovoltaic-energy-storing and power-generating system and method based on virtual synchronous generator control |
| CN110289619A (en) * | 2019-07-05 | 2019-09-27 | 南京工程学院 | Energy accumulation current converter compensating control method based on grid-connected electric energy quality synthesis evaluation |
-
2019
- 2019-09-30 CN CN201910945034.0A patent/CN110620400A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202798003U (en) * | 2012-09-28 | 2013-03-13 | 广州润能环保科技有限公司 | Power grid flexible balanced intelligent power saving device |
| CN108134393A (en) * | 2018-01-29 | 2018-06-08 | 华中科技大学 | A kind of Regional Energy interconnection distribution network system based on electric energy route technology |
| CN109586343A (en) * | 2018-12-29 | 2019-04-05 | 国网天津市电力公司电力科学研究院 | Photovoltaic-energy-storing and power-generating system and method based on virtual synchronous generator control |
| CN110289619A (en) * | 2019-07-05 | 2019-09-27 | 南京工程学院 | Energy accumulation current converter compensating control method based on grid-connected electric energy quality synthesis evaluation |
Non-Patent Citations (5)
| Title |
|---|
| 徐明: ""主动配电网系统负荷控制策略研究"", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 无: ""广西科学技术进步一等奖（部分）"", 《中国科技奖励》 * |
| 无: ""电能变换设备与智能配电网开启‘友好’模式"", 《同花顺财经》 * |
| 李彦林: ""微电网电能质量主动控制策略研究"", 《中国博士学位论文全文数据库 工程科技II辑》 * |
| 郭忠南: ""微电网双模式三电平并网逆变器关键控制技术研究"", 《中国博士学位论文全文数据库 工程科技II辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11791632B2 (en) | High-frequency uncontrolled rectifier-based DC transmission system for offshore wind farm | |
| Li et al. | Review on DC transmission systems for integrating large‐scale offshore wind farms | |
| CN103595063B (en) | A kind of energy accumulation current converter and battery energy storage system thereof | |
| CN103337972B (en) | Mixed type transverter and wind power generation system | |
| CN203205889U (en) | DC (direct current) micro grid system | |
| CN102545200A (en) | Multi-port direct-current distribution network system based on voltage source converter | |
| CN103236712A (en) | Direct-current micro-grid system and control method thereof | |
| Chen et al. | Energy reliability enhancement of a data center/wind hybrid DC network using superconducting magnetic energy storage | |
| CN111668885B (en) | Energy storage planning method for improving characteristics of alternating current and direct current hybrid power system | |
| CN110137936B (en) | Building low-voltage direct current power supply system | |
| Zhou et al. | Static state power smoothing and transient power quality enhancement of a DC microgrid based on multi-function SMES/battery distributed hybrid energy storage system | |
| CN207320834U (en) | A kind of circuit topological structure of alternating current-direct current mixing distribution system | |
| Zhengyou | Study on the application of advanced power electronics in smart grid | |
| Zhao et al. | Multi-Stage Sequential Network Energy Control for offshore AC asymmetric fault ride-through of MMC-HVDC system integrated offshore wind farms | |
| CN113036768A (en) | Power distribution network comprehensive optimization method based on intelligent transformer | |
| Chen et al. | A techno-economic sizing approach for medium-low voltage DC distribution system | |
| CN110620400A (en) | Electric energy conversion equipment and intelligent power distribution network friendly interaction technology system | |
| Wang et al. | Application of AC/DC distribution network technology based on flexible substation in regional energy internet | |
| Zhao et al. | An overview on application analysis of power electronic technology in smart grid | |
| CN107769211A (en) | A kind of twin voltage grade alternating current-direct current mixes distribution system | |
| CN113629752A (en) | Flexible direct-current offshore converter station, system and control method based on 66kV convergence access | |
| Zhou et al. | A Novel DC Transmission and Distribution System with 100% New Energy Consumption | |
| CN113595067A (en) | Novel deep and distant sea wind power transmission system based on medium-low-power frequency collection | |
| Dias et al. | Power electronics in the context of renewables, power quality and smart grids | |
| CN204046191U (en) | The AC/DC integrated power-supply system of 110 kv substation microgrids |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191227 |