Title: The source-network coordinated planning of active distribution system based on linear constraints

Authors: Shui Liu; Zhenxin Zhong; Ming Chen

Addresses: Huizhou Power Supply Bureau, Guangdong Power Grid Co., Ltd., Huizhou, 516001, Guangdong, China ' Huizhou Power Supply Bureau, Guangdong Power Grid Co., Ltd., Huizhou, 516001, Guangdong, China ' Huizhou Power Supply Bureau, Guangdong Power Grid Co., Ltd., Huizhou, 516001, Guangdong, China

Abstract: To overcome the problems of poor convergence, high cost and long planning time of traditional methods, a source-network coordinated planning method of active distribution system based on linear constraints is proposed. Firstly, the objective function of source network collaborative planning of active distribution system is established, so as to build the source network collaborative planning model. Then, the system power balance, line power security and other constraints are analysed, and the line power constraints and node voltage constraints are transformed into linear constraints by sensitivity method. Finally, the artificial fish swarm algorithm is used to solve the model, and the output of the model is the source network cooperation planning result of the active distribution system. Experimental results show that this method achieves the convergence of the model solution algorithm in 30 times, the total planning cost is 3.512645 million yuan, and the planning time varies from 0.1 s to 0.5 s.

Keywords: linear constraint; active power distribution system; source-network collaborative planning; comprehensive cost; safety factor; synergy factor.

DOI: 10.1504/IJPEC.2022.128200

International Journal of Power and Energy Conversion, 2022 Vol.13 No.2, pp.194 - 208

Received: 20 Jul 2022
Accepted: 03 Oct 2022
Published online: 11 Jan 2023 *

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