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A method and system for dynamically dividing distributed power clusters

A distributed power and cluster technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of limited application range of distributed power cluster control and large control dimension of distribution network, and achieve safe and economical realization. The effect of operation, improving the level of voltage control, and improving the efficiency of management and control

Active Publication Date: 2019-03-12
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +3
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Problems solved by technology

Therefore, how to solve the problems of limited application range of distributed power cluster control and large distribution network control dimension is a key technical problem to be solved by those skilled in the art

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  • A method and system for dynamically dividing distributed power clusters
  • A method and system for dynamically dividing distributed power clusters
  • A method and system for dynamically dividing distributed power clusters

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Embodiment Construction

[0053] The core of the present invention is to provide a method and system for dynamic division of distributed power supply clusters, which solves the problems of limited application range of distributed power supply cluster control and large distribution network control dimension, and provides distributed power supply clusters with similar characteristics Partitioning, the cluster control method is extended to the distribution network containing other distributed generation.

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments o...

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Abstract

The invention discloses a distributed power supply cluster dynamic partitioning method and system. The method comprises the following steps: analyzing different control requirements of a power distribution network according to voltage distribution of a dominant node and dividing an economic control cluster and an emergency control cluster, wherein different control clusters adopt different cluster partition indexes; calculating a similarity matrix between distributed power supplies by utilizing the cluster partition indexes, and enabling the distributed power supplies to be equivalent to a network structure based on the similarity matrix; and based on an analysis method of a community theory in a complex network, and by utilizing a Q-value function for evaluating a community structure, dividing distributed power supply clusters. The method and system solve the problems of application limitation of cluster control and "curse of dimensionality" of distribution network scheduling and operation control, enable the cluster control to be expanded to a power distribution network having various distributed power supplies, realizes dynamic division of the distributed power supply clusters, have the advantages of high flexibility and adaptability and the like, can effectively improve control efficiency of the distributed power supplies, improve voltage control level of the power distribution network and realize safe and economical operation of the power distribution network.

Description

technical field [0001] The invention relates to the field of distributed power sources, in particular to a method and system for dynamically dividing distributed power source clusters. Background technique [0002] Aiming at the impact of the high penetration of distributed power into the distribution network, the current solutions are mainly micro-grid technology, virtual power plant technology (VPP) and distributed power cluster control technology. Distributed power cluster control technology is mainly used in large-scale wind farm control, and has not been successfully expanded to the field of power grids containing other types of distributed power such as distributed photovoltaics and gas turbines. [0003] Each wind farm is relatively concentrated in terms of distance, and multiple wind farms are connected to the same grid-connected point, so there is no need to divide clusters. For other types of distributed power sources such as distributed photovoltaics, the capacit...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/38
CPCH02J3/381H02J3/46Y02A30/60
Inventor 杨勇李鹏王威窦晓波张雪松刘沛立倪春花王波周金辉顾伟吴在军
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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