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Independent microgrid hybrid control method and system based on combination of peer-to-peer control and centralized control

A technology of peer-to-peer control and centralized control, which is applied in the direction of sustainable manufacturing/processing, single-network parallel feeding arrangement, climate sustainability, etc. It can solve problems such as coordination control and operation complexity, and the influence of system operation status, and achieve flexibility Efficient operation control, improved active frequency characteristics, improved economy and flexibility

Active Publication Date: 2018-05-01
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

[0006] In fact, independent microgrids often include various distributed power sources such as intermittent power sources, synchronous generator sets, and energy storage systems, and there are many distributed power sources, and their coordinated control and operation are very complicated. Both the control strategy and the control method will have a greater impact on the system operation

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  • Independent microgrid hybrid control method and system based on combination of peer-to-peer control and centralized control
  • Independent microgrid hybrid control method and system based on combination of peer-to-peer control and centralized control
  • Independent microgrid hybrid control method and system based on combination of peer-to-peer control and centralized control

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Embodiment Construction

[0024] In order to make the purpose of the invention, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the present invention, not for limiting the present invention.

[0025] see figure 1 , the present invention is based on the combination of peer-to-peer control and centralized control. The independent micro-grid hybrid control system includes an independent micro-grid and a micro-grid central control center. The independent micro-grid includes a variety of distributed power sources, and the independent micro-grid is connected to the micro-grid central control center. , the distributed power supply includes a main control power supply and an auxiliary power supply. The main control p...

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Abstract

The invention discloses a hybrid control method for an independent microgrid based on a combination of peer-to-peer control and centralized control. The independent microgrid includes a variety of distributed power sources, and the independent microgrid is connected to the central control center of the microgrid. The grid hybrid control method includes: (1) using peer-to-peer control to control the parallel operation of the main control power sources in the independent microgrid; (2) using centralized control to balance and optimize the discrete control activities of each distributed power source from a global perspective . The invention discloses an independent microgrid hybrid control system based on the combination of peer-to-peer control and centralized control. The invention solves the problem of coordinated control among multiple types and multiple distributed power sources in an independent microgrid system, ensures the stability of voltage and frequency during system operation, and improves the optimized operation and value maximization of the system at the same time.

Description

technical field [0001] The present invention relates to micro-grid operation control technology, more specifically, to a hybrid control method and system for an independent micro-grid based on the combination of peer-to-peer control and centralized control. Background technique [0002] Independent microgrid refers to a small power system that is isolated from the external large power grid and operates independently. It mainly includes two forms: (1) an island-style microgrid that is not connected to the external large power grid; The static switch at the common connection point disconnects the connection with the main grid and transfers to the microgrid in the independent operation mode. [0003] Existing research and practice have shown that an independent microgrid with multiple distributed power sources can effectively improve the power supply reliability and power quality of the system and reduce costs. It is not only an effective way to solve and improve the scattered ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46
CPCY02P80/14
Inventor 李鹏雷金勇杨苹喻磊许志荣郭晓斌许爱东周少雄马艺玮马溪原王建邦
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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