CN104135078A - System and method for controlling distributed power source to be connected to power distribution network - Google Patents
System and method for controlling distributed power source to be connected to power distribution network Download PDFInfo
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- CN104135078A CN104135078A CN201410391965.8A CN201410391965A CN104135078A CN 104135078 A CN104135078 A CN 104135078A CN 201410391965 A CN201410391965 A CN 201410391965A CN 104135078 A CN104135078 A CN 104135078A
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- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a system and method for controlling a distributed power source to be connected to the power distribution network. The system comprises a local control layer, a coordination control layer and a dispatching managing layer structure. The local control layer comprises a photovoltaic inverter, an energy storage both-way controller and a related measure and control terminal. The coordination control layer comprises a running controller. The dispatching managing layer comprises a distributed power source access controller. According to the method, a control strategy is formed based on the current work condition of the distributed power generation, a micro-grid and a main grid according to rated power and non-limited power of the distributed power source and consideration of distribution network load peak shifting, and the control strategy is issued to the coordination control layer; the coordination control layer decomposes the control strategy into a control signal for the device according to the measurement value and the state quantity reported by the local control layer, the control signal is issued to the local control layer, and a local control layer device executing mechanism finally finishes the control process. Three-layer mode architecture is used for performing controlling, the control mode is flexible, the distributed power source and micro-grid control are mainly finished locally, and the timeliness can be effectively guaranteed.
Description
Technical field
The invention belongs to intelligent distribution network technical field, especially a kind of control system and method thereof of distributed power source access power distribution network.
Background technology
The distributed power source access power distribution network of high permeability, brings a lot of negative effects will inevitably to operation, scheduling and the management of power distribution network.In order to make power distribution network can adapt to the grid integration of distributed power source, in the urgent need to distributed power source operation control and access control key technology are furtherd investigate, thereby reduce the adverse effect that distributed power source grid integration brings, bring into play its positive booster action simultaneously, to adapt to distributed power source, the needs that especially distributed photovoltaic power generation industry develops on a large scale.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of distributed power source reasonable in design, the impact of reduction distributed power source grid integration to access control system and the method thereof of power distribution network.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of control system of distributed power source access power distribution network, comprise key-course, coordination key-course and three layers of control structure of dispatching management layer on the spot, described key-course on the spot comprises photovoltaic DC-to-AC converter, energy storage reversible controller and correlative measurement control terminal, described coordination key-course comprises operation controller, and described dispatching management layer comprises distributed power source access controller; Described detection and control terminal is connected with operation controller, described photovoltaic DC-to-AC converter, energy storage reversible controller are connected with operation controller by communication subnet, described coordination key-course is connected with dispatching management layer and is responsible for sending new forms of energy information on dispatching management layer by communication network, and described dispatching management layer is accepted to coordinate the new forms of energy monitor message of sending on key-course and is responsible for operation monitoring and scheduling controlling.
A control method for distributed power source access power distribution network, comprises the following steps:
(1) under normal condition, dispatching management layer be take the operating mode of current distributed power generation, micro-electrical network and major network and is basis, according to distributed power source, determine power, does not limit power, considers Distribution Network Load Data peak load shifting, and formation control policy distribution is given coordination key-course; Coordinate key-course, according to the measured value and the quantity of state that send on key-course on the spot, control strategy is decomposed into the control signal to equipment, be handed down to key-course on the spot, key-course equipment actuator finally completes control procedure on the spot;
(2) under the state of emergency, when key-course on the spot measure fault as isolated island dynamically afterwards not as good as taking overall control action, key-course equipment is acted immediately according to controlling protection logic on the spot, and coordinate key-course and coordinate key-course delivering in information, for the Adaptive Control scheme of forecast accident, carry out emergency control measure again;
(3), under communication failure condition, adopt adaptive control mode to carry out access control.
And described adaptive control mode is carried out connection control method and is: when dispatching management layer and coordination key-course generation communication failure, dispatching management layer is transferred to coordination key-course by control decision function, forms two-layer control model; When coordinating key-course and part on the spot during key-course communication failure, key-course equipment carries out according to measured value and quantity of state the control strategy of setting on the spot.
Advantage of the present invention and good effect are:
1, the present invention adopts three layer model frameworks to control, and its control mode is flexible, and distributed power source and microgrid are controlled and mainly completed on the spot, ageing can effectively assurance.
2, the present invention adopts the unified platform and opening Design method, and platform separate with application, therefore can third party's advanced applied software easy to use and secondary development, and therefore, be easy to realize and expand.
3, the present invention has the standard interface of enriching can flexible configuration, has overcome the problem that current distributed power generation interface disunity, control system need be supported various protocols, is applicable to the construction application of different power distribution networks.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described:
A kind of control system of distributed power source access power distribution network, as shown in Figure 1, comprise key-course, coordination key-course and three layers of control structure of dispatching management layer on the spot, wherein, key-course comprises photovoltaic DC-to-AC converter, energy storage reversible controller and correlative measurement control terminal on the spot, coordinate key-course and comprise operation controller, dispatching management layer comprises distributed power source access controller.On the spot key-course be responsible for each new forms of energy unit and load electric equipment control and with the interface of coordinating key-course, the detection and control terminal of key-course is connected with the operation controller of coordinating key-course on the spot, it is the actuator of control strategy (order), the photovoltaic DC-to-AC converter of key-course on the spot, energy storage reversible controller is connected with the operation controller of coordinating key-course by communication subnet, photovoltaic DC-to-AC converter, coordinated control function between the new forms of energy such as energy storage reversible controller, such as pressure regulation, frequency modulation, operational mode switchover policy is formulated by coordinating key-course key-course, and by operation controller to photovoltaic DC-to-AC converter, energy storage reversible controller sends corresponding control command and implements to control.Coordinate key-course and be connected with dispatching management layer by communication network, be responsible for sending new forms of energy information on dispatching management layer; Dispatching management layer mainly accepts to coordinate the new forms of energy monitor message of sending on key-course equipment, and the overall operation of being responsible for each new forms of energy monitors and dispatching management.
Native system is according to the state of the art and the evolution of distributed power generation/energy storage both at home and abroad, for the actual demand of domestic intelligent grid construction, designs.This system control model is more flexible, can adapt to the fast reaction of distributed power generation equipment, can guarantee again distribution scheduling overall situation response at a slow speed.Whole system is less demanding to communication performance, when coordinating to communicate by letter and to break down between key-course and coordination key-course, coordinate the operation of key-course energy partial autonomy, and key-course control signal is coordinated in the execution of key-course control one side on the spot, is that self adaptation completes promptly quick control on the spot on the one hand.
A kind of control method of distributed power source access power distribution network, for Power system dynamic process rapidity and the overall control program fact of property at a slow speed, adopt on the one hand three coating control methods control and each layer of control relatively independent, each layer of control requires to take different speed according to different responses respectively; Adopt on the other hand OO condition control method: for realizing the method for designing of this kind of control method program based on message mechanism, each key-course is controlled with the state control algolithm executing state of setting according to current state amount, when changing, up/down layer adopt message mechanism to send to, this key-course is processed respectively according to message priority, avoids because waiting for that causing task to process incurs loss through delay.The concrete methods of realizing of this control method comprises the following steps:
Step 1: under normal condition, dispatching management layer be take the operating mode of current distributed power generation, micro-electrical network and major network and is basis, determine power, does not limit power, considers Distribution Network Load Data peak load shifting according to distributed power source, and formation control policy distribution is given coordination key-course; Coordinate key-course, according to the measured value and the quantity of state that send on key-course on the spot, control strategy is decomposed into the control signal to equipment, be handed down to key-course on the spot, key-course equipment actuator finally completes control procedure on the spot.
Step 2: under the state of emergency; when key-course on the spot measure fault as isolated island dynamically afterwards not as good as taking overall control action; key-course equipment is acted immediately according to controlling protection logic on the spot; and coordinate key-course and coordinate key-course delivering in information; for the Adaptive Control scheme of forecast accident, carry out emergency control measure again.
Step 3: adopt adaptive control mode to carry out access control under communication failure condition.
Before mention this Control System Design dependence communication system within reason, as dispatching management layer and coordinate communication failure between key-course, dispatching management layer is transferred to coordination key-course by control decision function, forms two-layer control model; And when coordinating key-course and part key-course DG communication failure on the spot, key-course DG still can carry out setup control strategy according to measured value and quantity of state on the spot.
By above control method, can realize the control function of distributed power source access power distribution network.
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in embodiment; every other execution modes that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (3)
1. the control system of distributed power source access power distribution network, it is characterized in that: comprise key-course, coordination key-course and three layers of control structure of dispatching management layer on the spot, described key-course on the spot comprises photovoltaic DC-to-AC converter, energy storage reversible controller and correlative measurement control terminal, described coordination key-course comprises operation controller, and described dispatching management layer comprises distributed power source access controller; Described detection and control terminal is connected with operation controller, described photovoltaic DC-to-AC converter, energy storage reversible controller are connected with operation controller by communication subnet, described coordination key-course is connected with dispatching management layer and is responsible for sending new forms of energy information on dispatching management layer by communication network, and described dispatching management layer is accepted to coordinate the new forms of energy monitor message of sending on key-course and is responsible for operation monitoring and scheduling controlling.
2. an implementation method for control system as claimed in claim 1, is characterized in that: comprise the following steps:
(1) under normal condition, dispatching management layer be take the operating mode of current distributed power generation, micro-electrical network and major network and is basis, according to distributed power source, determine power, does not limit power, considers Distribution Network Load Data peak load shifting, and formation control policy distribution is given coordination key-course; Coordinate key-course, according to the measured value and the quantity of state that send on key-course on the spot, control strategy is decomposed into the control signal to equipment, be handed down to key-course on the spot, key-course equipment actuator finally completes control procedure on the spot;
(2) under the state of emergency, when key-course on the spot measure fault as isolated island dynamically afterwards not as good as taking overall control action, key-course equipment is acted immediately according to controlling protection logic on the spot, and coordinate key-course and coordinate key-course delivering in information, for the Adaptive Control scheme of forecast accident, carry out emergency control measure again;
(3), under communication failure condition, adopt adaptive control mode to carry out access control.
3. a kind of distributed power source according to claim 2 accesses the control method of power distribution network, it is characterized in that: described adaptive control mode is carried out connection control method and is: when dispatching management layer and coordination key-course generation communication failure, dispatching management layer is transferred to coordination key-course by control decision function, forms two-layer control model; When coordinating key-course and part on the spot during key-course communication failure, key-course equipment carries out according to measured value and quantity of state the control strategy of setting on the spot.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410391965.8A CN104135078A (en) | 2014-08-11 | 2014-08-11 | System and method for controlling distributed power source to be connected to power distribution network |
| PCT/CN2014/091082 WO2016023287A1 (en) | 2014-08-11 | 2014-11-14 | System and method for controlling accessing of distributed power supply to power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410391965.8A CN104135078A (en) | 2014-08-11 | 2014-08-11 | System and method for controlling distributed power source to be connected to power distribution network |
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| CN104135078A true CN104135078A (en) | 2014-11-05 |
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| CN201410391965.8A Pending CN104135078A (en) | 2014-08-11 | 2014-08-11 | System and method for controlling distributed power source to be connected to power distribution network |
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| WO (1) | WO2016023287A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105182250A (en) * | 2015-08-24 | 2015-12-23 | 北京国电通网络技术有限公司 | Non-intruding type distributed power output monitoring device |
| WO2016023287A1 (en) * | 2014-08-11 | 2016-02-18 | 国家电网公司 | System and method for controlling accessing of distributed power supply to power distribution network |
| CN106487093A (en) * | 2016-10-24 | 2017-03-08 | 国家电网公司 | Towards distribution net side distributed photovoltaic integrated operation control system and control method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112766627B (en) * | 2019-11-06 | 2023-11-28 | 珠海优特电力科技股份有限公司 | Control method and device for controllable electric facility, storage medium and electronic device |
| CN111461567A (en) * | 2020-04-14 | 2020-07-28 | 国家电网公司东北分部 | Mass distributed new energy low-cost management system based on mobile Internet of things |
| CN116719873B (en) * | 2023-07-31 | 2024-01-26 | 广东电网有限责任公司中山供电局 | Distributed power supply edge autonomous software control system |
| CN117691753B (en) * | 2024-02-02 | 2024-04-19 | 中国电力科学研究院有限公司 | Distributed photovoltaic layered hierarchical regulation and control method based on cloud edge end integrated cooperation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7397228B2 (en) * | 2006-01-12 | 2008-07-08 | International Business Machines Corporation | Programmable on-chip sense line |
| CN101847876A (en) * | 2010-05-28 | 2010-09-29 | 上海理工大学 | Three-phase photovoltaic grid connected inverter system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202798010U (en) * | 2012-07-18 | 2013-03-13 | 中国电力科学研究院 | Micro-grid distributed power supply layering coordination control system |
| CN102832706B (en) * | 2012-07-18 | 2015-07-22 | 中国电力科学研究院 | Distributed power stratified coordination control system of microgrid and method |
| CN103761586A (en) * | 2014-02-11 | 2014-04-30 | 东南大学 | Microgrid cluster concentrated-distributed type coordinated optimization scheduling method |
| CN104135078A (en) * | 2014-08-11 | 2014-11-05 | 国家电网公司 | System and method for controlling distributed power source to be connected to power distribution network |
-
2014
- 2014-08-11 CN CN201410391965.8A patent/CN104135078A/en active Pending
- 2014-11-14 WO PCT/CN2014/091082 patent/WO2016023287A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7397228B2 (en) * | 2006-01-12 | 2008-07-08 | International Business Machines Corporation | Programmable on-chip sense line |
| CN101847876A (en) * | 2010-05-28 | 2010-09-29 | 上海理工大学 | Three-phase photovoltaic grid connected inverter system |
Non-Patent Citations (1)
| Title |
|---|
| 张广明等: "基于IEC61850的微电网运行控制***设计与应用", 《电力***自动化》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016023287A1 (en) * | 2014-08-11 | 2016-02-18 | 国家电网公司 | System and method for controlling accessing of distributed power supply to power distribution network |
| CN105182250A (en) * | 2015-08-24 | 2015-12-23 | 北京国电通网络技术有限公司 | Non-intruding type distributed power output monitoring device |
| CN105182250B (en) * | 2015-08-24 | 2017-12-12 | 北京国电通网络技术有限公司 | A kind of non-intrusion type distributed power source output monitoring device |
| CN106487093A (en) * | 2016-10-24 | 2017-03-08 | 国家电网公司 | Towards distribution net side distributed photovoltaic integrated operation control system and control method |
| CN106487093B (en) * | 2016-10-24 | 2019-07-16 | 国家电网公司 | Towards distribution net side distributed photovoltaic integrated operation control system and control method |
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| Publication number | Publication date |
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| WO2016023287A1 (en) | 2016-02-18 |
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Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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Application publication date: 20141105 |
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