Multi-Objective Optimization Design of Railway Static Power Conditioner Considering Voltage Fluctuation of Power Supply Arm
Luo Pei1, Yang Weimin1, Zou Guandong2, Luo Longfu3, Zhang Zhiwen3
1. College of Information Engineering Xiangtan University Xiangtan 411105 China; 2. State Grid Hunan Electric Power Company Limited Changsha 410002 China; 3. College of Electrical and Information Engineering Hunan University Changsha 410082 China
Abstract：When using the railway static power conditioner (RPC) to solve the problem of power quality in traction power supply system, the compensation current of RPC will increase the voltage fluctuation of the two power supply arms to some extent, which may cause the under voltage or over voltage in the traction network. Under the premise of guaranteeing the effect of RPC comprehensive management, in order to effectively reduce the RPC compensation capacity and minimize the voltage fluctuation of the two power supply arms, in this paper, an RPC multi-objective optimization design method is proposed, which uses the voltage fluctuation degree of the power supply arm and the RPC compensation capacity as the optimization objectives. This paper analyzes the reasons why the RPC compensation current aggravates the voltage fluctuation of the two power supply arms, and introduces the voltage fluctuation index of the power supply arm. The multi-objective optimization mathematical model of RPC is established, and then solved by the multi-objective optimization algorithm of particle swarm optimization. The analysis and experiments verify effectiveness of the proposed method in reducing the voltage fluctuation of the two power supply arms and reducing the RPC compensation capacity.
罗培, 杨维民, 周冠东, 罗隆福, 张志文. 考虑供电臂电压波动的铁路功率调节器多目标优化设计[J]. 电工技术学报, 2018, 33(22): 5346-5357.
Luo Pei, Yang Weimin, Zou Guandong, Luo Longfu, Zhang Zhiwen. Multi-Objective Optimization Design of Railway Static Power Conditioner Considering Voltage Fluctuation of Power Supply Arm. Transactions of China Electrotechnical Society, 2018, 33(22): 5346-5357.
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2018, Vol. 33 
