CN202997563U - Energy management system for urban power grid - Google Patents
Energy management system for urban power grid Download PDFInfo
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- CN202997563U CN202997563U CN2012202739175U CN201220273917U CN202997563U CN 202997563 U CN202997563 U CN 202997563U CN 2012202739175 U CN2012202739175 U CN 2012202739175U CN 201220273917 U CN201220273917 U CN 201220273917U CN 202997563 U CN202997563 U CN 202997563U
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- energy management
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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
- 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
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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
- 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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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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
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses an energy management system for an urban power grid. The energy management system comprises two layers of structures, namely, a main-grid energy management system and subarea energy management systems. The energy management system also comprises a main-grid power database, a subarea grid database, a power station, a transformer station and a load side. The main-grid power database is connected with the main-grid energy management system and the plurality of subarea energy management systems. Each subarea energy management system is connected with the subarea grid database, which is respectively connected with the subarea energy management systems, the power station, the transformer station and the load side. The technical effects are that by means of the layered structure of the energy management system, rapidity and validity of regulation and control by the energy management system are improved.
Description
Technical field
The utility model relates to a kind of energy management system for urban distribution network.
Background technology
Along with the finiteness of city dweller for the continuous soaring and major network mains supply ability of electricity needs, for electrical network operator, industrial enterprise and resident that electric power energy is provided, new challenge has been proposed all.Use electric power to become the task of top priority in the mode of High-efficiency Sustainable as far as possible.The mode of High-efficiency Sustainable uses electric power to be based upon on effective energy management system.This energy management system, not only to guarantee the safe power supply of urban distribution network, also requiring provides high-quality electric power energy to power consumer, has both guaranteed the voltage stabilization of power consumer in using power process, reduces the reactive power that load side produces in the electricity usage process.The simultaneously described energy management system variation of responsive electricity grid load and running status fast, described energy management system energy rapidity and effectively response is made in the variation of operation of power networks state.
The utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of energy management system for urban distribution network to be provided.It improves rapidity and the validity of described energy management system regulation and control.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of energy management system for urban distribution network comprises major network energy management system and subregion energy management system double-layer structure; Described energy management system also comprises: major network electric power data storehouse, subregion electric network data storehouse, power station, transformer station and load side; Described major network electric power data storehouse connects described major network energy management system and some subregion energy management systems, each described subregion energy management system connects described subregion electric network data storehouse, and described subregion electric network data storehouse connects respectively the described energy management system of subregion, described power station, described transformer station and described load side.
Further, described subregion electric network data storehouse has also connected distributed electrical energy electricity generation system and low voltage electric network energy management system.
Further, be equipped with in described transformer station: dynamic reactive compensation device, capacitor, reactor and STATCOM.
Further, on described power station, excitation unit and speed regulating device are housed.
Further, the built-in controller that blendes together of described subregion energy management system.
Adopted the technical scheme of a kind of energy management system for urban distribution network of the present utility model, i.e. a kind of technical scheme that comprises the energy management system that is used for urban distribution network with hierarchy of major network energy management system and subregion energy management system.Its technique effect is: improve rapidity and the validity of described energy management system pipe regulation and control for urban distribution network, energy management system can rapidity and effectively response is made in the variation of operation of power networks state.
Description of drawings
Fig. 1 is the structural representation of a kind of energy management system for urban distribution network of the present utility model.
Embodiment
To see also Fig. 1, in order can understand the technical solution of the utility model better, below by embodiment particularly, and to be described in detail by reference to the accompanying drawings:
See also Fig. 1, three grades of electrical networks that urban distribution network generally is comprised of major network, subregion electrical network and low voltage electric network.Accordingly, set up a kind of structure of also having taked layer-stepping for the energy management system of urban distribution network of the present utility model, correspondence establishment the structure of three stage layered energy management systems of major network energy management system 1, subregion energy management system 2 and low voltage electric network energy management system 3.Certainly, only have the structure of the two-stage energy management system of described major network energy management system 1 and described subregion energy management system 2 also to be fine.Design makes described energy management system have the distinguishing feature that the overall control target hierarchy is realized like this, described major network energy management system 1 connects major network SCADA (the Supervisory Control And Data Acquisition of system, data acquisition and supervisor control), described subregion energy management system 2 connects subregion electrical network SCADA system.Described major network energy management system 1 loads respectively major network interpretation software and subregion electrical network process software with described subregion energy management system 2, the purpose of design is like this: improve rapidity and the validity of described energy management system regulation and control, and reduced the complexity of database and interpretation software.
A kind of energy management system for urban distribution network of the present utility model, comprise major network energy management system 1, major network electric power data storehouse 10, subregion energy management system 2, subregion electric network data storehouse 20, power station 21, transformer station 22 and load side 23, described major network electric power data storehouse 10 connects described major network energy management system 1 and some subregion energy management systems 2, realizes the data sharing between described major network energy management system 1 and described subregion energy management system 2.
Described subregion electric network data 20 also connects respectively the described energy management system 2 of subregion, described power station 21, described transformer station 22 and described load side 23.In general, described subregion energy management system has also connected some low voltage electric network energy management systems 3 and distributed energy electricity generation system 24 for 2 times.Described distributed energy electricity generation system 24 mainly comprises the electricity generation systems such as solar energy, wind energy, biogas.Described like this subregion energy management system 2, described power station 21, described transformer station 22, described load side 23 and described distributed energy electricity generation system 24 can realize data sharing by described subregion electric network data storehouse 20.Wherein, the load of described load side 23 will have strict requirement to the voltage of whole electrical network stable, and described load side 23 also requires the reactive power that minimizing produces in the electricity usage process simultaneously.Described power station 21, described transformer station 22 and described distributed energy electricity generation system 24 are all by unified control of described subregion energy management system 2.Wherein, by the control of 2 pairs of described transformer stations 22 of described subregion energy management system, realize the adjusting to the subregion line voltage.By the control in 2 pairs of described power stations 21 of described subregion energy management system, realize the adjusting to subregion grid generation amount.
In the present embodiment, be equipped with in described transformer station 22: the flexible AC transmission equipment such as dynamic reactive compensation device (SVC), capacitor, reactor and STATCOM (STACOM).
When described STATCOM input was connected to power supply or energy storage device, the output of described STATCOM can independently send or absorb controlled meritorious and reactive power; It can improve the electric power system function aspect following: dynamic electric voltage is controlled, damping of power oscillation, transient stability, voltage flicker control etc.
Described dynamic reactive compensation device can effectively solve the reactive power impact that various loads produce, and voltage ripple of power network is obviously improved, and power factor obviously improves, and effectively reduces the line loss of electric power.
Can be by above-mentioned flexible AC transmission equipment being realized the automatism voltage control (AVC) to the subregion electrical network by described subregion energy management system 2.
Interior excitation unit and the speed regulating device of arranging in described power station 21, described subregion energy management system 2 can by the control to described excitation unit and described speed regulating device, be realized automatic generation amount control (AGC).
Certainly, described major network energy management system 1 and described low voltage electric network energy management system 3 also can be connected with described power station, described transformer station and described load side and described distributed energy electricity generation system.Described power station, the described transformer station that connects on described major network energy management system 1 and be connected load side be connected the distributed energy electricity generation system and consist of and all belong to other external system 11 that connects on described major network energy management system.
Wherein said major network energy management system 1, described subregion energy conservation are 2 and described low voltage electric network energy management system 3 built-in controller that blendes together all, and the controller that blendes together that the below is only 2 interior installations take described subregion energy conservation describes as example.Described subregion energy conservation be 2 interior installations blend together controller realizing described power station 21, described transformer station 22 and described load side 23, described distributed energy electricity generation system 24, and the equipment such as high-voltage dynamic reactive compensation device, capacitor, reactor and STATCOM in described transformer station 22 blend together control.
The described controller that blendes together is a kind of and controller of design theoretical based on hybrid control system, and described hybrid control system theory is a kind of event driven Theory of Automatic Control, and its control command corresponds directly to event and to eliminate this event as purpose.Described subregion energy management system 2 installed described blend together controller after, can carry out emergency control to it in the situation that described subregion electrical network stands disturbance, prevent voltage collapse, suppress low-frequency oscillation.The simultaneously described controller 2 that blendes together also can be realized the visual of continuous tide calculating/security domain on the browser by described client terminal 2, realization is to described subregion operation of power networks state LINE REAL TIME MONITORING and control, improve the safety and stability level of electrical network, thus the fail safe that effectively improves electrical network.And effectively reduce dispatching of power netwoks/operations staff's working strength, and improve quality and the precision of electric adjustment, improve the regulating effect of electric power.
described subregion energy management system 2 is built-in blend together controller after: pass through hybrid control system, can realize realizing described power station 21 in described subregion electrical network, described transformer station 22 and described load side 23, power station 21, transformer station 22 and load side 23, described distributed energy electricity generation system 24, and the high-voltage dynamic reactive compensation device in described transformer station 22, capacitor, the equipment such as reactor and STATCOM is carried out unified, regulation and control automatically, thereby build the described subregion electrical network multiple target automated system that excellent closed loop automatically controls that becomes, solved the unified control problem of meritorious and reactive power flow, the OPF(Optimal Power Flow of realization to the subregion electrical network) On-line Control, be conducive to realize whole power grid security, stable, the General Promotion of running quality and economic performance.Meritorious idle Collaborative Control and the adjusting of full electric network have been realized covering.Guaranteed the operation of subregion electricity net safety stable and high-quality.
Like this, described subregion energy management system 2 is by the described power station 21 that takes full advantage of described subregion electrical network, described energy electricity generation system 24, the flexible AC transmission equipment such as the described dynamic reactive compensation device in described transformer station 22, STATCOM are in the coordination that guarantees on subregion electrical network and major network voltage qualified basis by described reactive-load compensation equipment.The partition zone optimizing of 2 pairs of described subregion electrical networks of described subregion energy management system is controlled, make described subregion electrical network that sufficient flexible AC transmission equipment be arranged, improve the voltage security stability margin of described low voltage electric network and described load side 23, strengthen the ability that described subregion electrical network bears accident, realize the layering and zoning in-situ balancing of reactive voltage, guarantee described subregion line voltage level in the reasonable scope.Realized covering in described subregion electrical network the intelligent coordinated operation control of power transmission network and power distribution network reactive voltage.
In addition on the one hand, use the described controller that blendes together on described subregion energy management system 2, can improve the economy of subregion operation of power networks.Improve the quality of power supply level of subregion electrical network, effectively reduce the network loss of electric power in described subregion electrical network, improve the rate of qualified voltage of electrical network, reduce the investment of extra reactive-load compensation equipment.Improve the control technology level of subregion electrical network.Solved the unified control problem of meritorious and reactive power flow.Consider simultaneously the impact of voltage and frequency two aspect factors, realized that AGC and AVC co-operating and on-line coordination are meritorious, idle multiple-objection optimization.
RTDS(Real Time Digital Simulator, real-timedigital simulation instrument also are housed) in described major network energy management system 1, described subregion energy management system 2 and described low voltage electric network energy management system 3.On described subregion energy management system 2, described RTDS controls real-time simulation platform automatically as the voltage power-less on described subregion energy management system 2, for described subregion energy management system has been established technical support and test platform to 2 described subregion electrical networks enforcement AVC management and AGC management.This is conducive to take full advantage of the various idle resource in electric power system, more rationally carry out reactive power compensation, on guaranteeing voltage qualified basis by idle coordination up and down, partition zone optimizing, transfer the control of reactive voltage in scope, thereby there is sufficient dynamic reactive deposit in the system of assurance, strengthen the ability that electrical network bears accident, alleviate simultaneously factory's station operations staff's labour intensity, improve and control quality, accuracy, speed and effect.Be conducive to simultaneously in the subregion electrical network between Power Plant idle output distribution reasonable, take full advantage of send out, the idle resource of supply side, realize idle coordination up and down, partition zone optimizing, between power system delamination and subarea, the reactive power flow exchange reduces, reduce as far as possible grid net loss, to obtain economic benefit.
a kind of energy management system for urban distribution network of the present utility model be for be the management that has in essence of electric power system and the laminarity of regulation and control, " event " occurs and control command is sent discreteness and described power station, the bottom components such as load and flexible transmission equipment between the continuity that running status changes contradiction and the problem that causes, the hybrid system device is applied in energy management system, energy management system of the present utility model has can be processed on a large scale, complicated, non-linear, multiple-objection optimization, the ability of the multidimensional hybrid system that discrete and continuous state combines, its successful implementation will make the Electrical Power System Dynamic quality, safety and stability and energy-saving and cost-reducing triple objective optimizations or the accurate conception of optimizing become possibility.Described subregion energy management system 2 is by the described controller that blendes together, and described power station 21, described transformer station 22 be connected the connection of distributed energy electricity generation system 24, AVC and AGC are integrated on a unified platform, can consider simultaneously the impact of factor aspect voltage and frequency two in actual mechanical process, the contradictory phenomena that might occur when having avoided voltage and frequency adjustment to adjust respectively.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. energy management system that is used for urban distribution network, described energy management system comprises major network energy management system (1) and subregion energy management system (2) double-layer structure; It is characterized in that: described energy management system also comprises: major network electric power data storehouse (10), subregion electric network data storehouse (20), power station (21), transformer station (22) and load side (23); Described major network electric power data storehouse (10) connects described major network energy management system (1) and some subregion energy management systems (2), each described subregion energy management system (2) connects described subregion electric network data storehouse (20), and described subregion electric network data storehouse connects respectively the described energy management system of subregion (2), described power station (21), described transformer station (22) and described load side (23).
2. a kind of energy management system for urban distribution network according to claim 1, it is characterized in that: described subregion electric network data storehouse (20) has also connected distributed electrical energy electricity generation system (24) and low voltage electric network energy management system (3).
3. a kind of energy management system for urban distribution network according to claim 1 and 2, it is characterized in that: described transformer station is equipped with in (22): dynamic reactive compensation device, capacitor, reactor and STATCOM.
4. a kind of energy management system for urban distribution network according to claim 1 and 2, it is characterized in that: excitation unit and speed regulating device are equipped with on (21) in described power station.
5. a kind of energy management system for urban distribution network according to claim 1 and 2, is characterized in that: the built-in controller that blendes together of described subregion energy management system (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202739175U CN202997563U (en) | 2012-06-12 | 2012-06-12 | Energy management system for urban power grid |
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| CN2012202739175U CN202997563U (en) | 2012-06-12 | 2012-06-12 | Energy management system for urban power grid |
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| CN202997563U true CN202997563U (en) | 2013-06-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092267A (en) * | 2018-01-09 | 2018-05-29 | 国网河南省电力公司经济技术研究院 | A kind of power distribution network access planning system and method based on intelligent body |
| CN113078636A (en) * | 2021-04-07 | 2021-07-06 | 武汉瑞辉科技发展有限公司 | Intelligent cloud management system for power grid power system supply chain based on data analysis and cloud computing |
-
2012
- 2012-06-12 CN CN2012202739175U patent/CN202997563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092267A (en) * | 2018-01-09 | 2018-05-29 | 国网河南省电力公司经济技术研究院 | A kind of power distribution network access planning system and method based on intelligent body |
| CN108092267B (en) * | 2018-01-09 | 2020-12-22 | 国网河南省电力公司经济技术研究院 | Method for power distribution network access planning system based on intelligent agent |
| CN113078636A (en) * | 2021-04-07 | 2021-07-06 | 武汉瑞辉科技发展有限公司 | Intelligent cloud management system for power grid power system supply chain based on data analysis and cloud computing |
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