刘华晶,许振波,董苒,王佳伟,秦文萍.提升配电网供电性能的风-光-储两阶段规划与配置[J].电测与仪表,2022,59(9):23-30. Liu Huajing,Xu Zhenbo,Dong Ran,Wang Jiawei,Qin Wenping.Wind-solar-storage two-stage planning and configuration to improve power supply performance of distribution networks[J].Electrical Measurement & Instrumentation,2022,59(9):23-30.
提升配电网供电性能的风-光-储两阶段规划与配置
Wind-solar-storage two-stage planning and configuration to improve power supply performance of distribution networks
Aiming at the problem of degraded power supply performance caused by unreasonable distributed power (DG) planning in distribution network, a two-stage planning and configuration method for the distribution network under wind-solar-storage access is proposed in this paper. In the first stage, the location and capacity of the wind-solar power supply are determined by calculating the node active power loss sensitivity. In the second stage, the multi-objective planning model is established with the minimum energy storage access capacity, the largest system voltage stability index, and the smallest load shortage rate. Meanwhile, the energy storage charge/discharge is managed in conjunction with the average equivalent load of node. In order to improve the solution accuracy of the second-stage multi-objective problem, a hybrid intelligent solution algorithm based on multi-objective particle swarm optimization is proposed to solve the second-stage model. Finally, the optimal number of energy storage is selected by the TOPSIS method into the program. Four scenarios are set on the IEEE-33 node system for simulation testing. The results show that the proposed method can significantly improve the operation of the distribution network and provide reference for related planning and configuration.