Active power distribution network reconstruction method capable of promoting distributed energy consumption
A distributed energy and active distribution network technology, applied in the direction of electrical components, circuit devices, AC network circuits, etc., can solve the problems of distributed energy consumption, reduce operating costs, reduce waste, and promote consumption Effect
Active Publication Date: 2018-06-19
SHANGHAI DIANJI UNIV
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[0004] The purpose of the present invention is to provide an active distribution network reconfiguration method that promotes the consumption of distributed energy, so as to change the blindness of finding switch closure and shutdown in the existing distribution network reconfiguration process and solve the problems in the distribution network. Distributed energy consumption problem in the reconstruction process
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[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.
[0023] Such as Figure 1 to Figure 8 Shown, the method that the present invention proposes comprises:
[0024] 1. First determine the energy and location of capacitor compensation, and reduce the number of switch overlaps for distribution network reconfiguration through the improved leapfrog algorithm, and to a certain extent, it can promote the algorithm of distributed energy consumption. Since there are many infeasible solutions in the process of reconfiguration of the distribution network, we use the node graph of the distribution network as an example to simplify the node graph, including deleting redundant nodes, and in the process of simplifying Delete all the circles, merge the parallel branches, and use the tree structu...
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The invention proposes an active power distribution network reconstruction method capable of promoting distributed energy consumption, and the method comprises the steps: determining the optimal compensation energy and optimal position of a capacitor through an improved frog-leaping algorithm, thereby simplifying a power distribution network; judging the radioactivity of the network through the tree-shaped layering and the breadth-first search, and enabling the switching operations of a switch to be ordered; and optimizing a target function through a binary genetic algorithm. The method can achieve the promotion of the consumption of the distributed power resources through the optimization of the position and capacity of the capacitor during the access to a power grid, thereby reducing thewaste of clean energy, reducing the number of reconstruction times of switching in a reconstruction process, reducing the faults, and reducing the operation cost. The tree-shaped structure is combined with the layering, thereby enabling the layering to be clear. Moreover, the method can reduce the non-feasible solutions in reconstruction and the convergence rate of an algorithm.
Description
technical field [0001] The invention relates to power distribution technology, in particular to an active distribution network reconfiguration method for promoting the consumption of distributed energy. Background technique [0002] Distribution networks have a ring structure, but usually operate in an open loop. The distribution network contains a large number of section switches (normally closed, used to isolate faulty parts) and a small number of contact switches (normally open, used to provide optional power supply paths), so under normal operating conditions, it can be used according to different load conditions. , Change the on / off state of these switches to adjust the network structure, on the one hand, reduce the network loss, on the other hand, make the load as evenly distributed as possible among the lines and transformers. Distribution network reconfiguration is an important means to improve the economy, power supply quality and security of power grid operation. ...
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IPC IPC(8): H02J3/38
CPCH02J3/381H02J2203/20Y02A30/60
Inventor 江泽昌刘天羽王义东吴星
Owner SHANGHAI DIANJI UNIV