Method for reconstructing power distribution network based on double-ant-colony optimization

Abstract

The invention relates to a method for reconstructing a power distribution network based on double-ant-colony optimization. The method comprises the steps of extracting a looped network, initializing parameters, searching for double ant colonies, decoding a path where each set of ants walks through, obtaining the reconstruction scheme of the power distribution network, conducting looped network detection, island detection and constraint condition detection, judging feasibility of the scheme, judging whether the number of two sets of the ants reaches the ant colony scale or not, judging whether the frequency of information exchange is achieved or not, conducting information exchange, judging whether the terminal condition is met or not, and ending and obtaining the optimum power distribution network reconstruction scheme. The deep searching method is adopted, the reconstruction of the looped network of the power distribution network on a looped network upper interconnection switch and a section switch is determined, digits participating in switch reconstruction are reduced, the problem that when the switch combinatorial dimension in the power distribution network is higher, the searching recovery scheme faces combinatorial explosion is effectively solved, the calculated amount is reduced, and the optimum speed is improved.

Description

technical field [0001] The invention belongs to the technical field of distribution network operation optimization and operation management, and relates to a network reconfiguration method for medium and low-voltage distribution networks, in particular to a distribution network network reconfiguration method based on dual ant colony optimization. Background technique [0002] The network loss rate of major western industrial countries is 5% to 8%, while the network loss rate in my country is as high as 9%. A large part of the network loss rate comes from the 35kV ~ 110kV distribution network, which can account for about 60% of the total network loss rate. It can be seen that the key to loss reduction work is to reduce the line loss of the distribution network. Due to the ring design of the distribution network, under the premise of ensuring the open-loop operation of the distribution network and satisfying the inequality constraints such as feeder heat capacity, voltage drop...

AI Technical Summary

Problems solved by technology

However, the space dimension of the switch combination variable is very high, which makes the distribution network reconfiguration face the danger of combination explosion.

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