考虑供电臂电压波动的铁路功率调节器多目标优化设计

doi:10.19595/j.cnki.1000-6753.tces.171719

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摘要在采用铁路功率调节器（RPC）解决牵引供电系统电能质量问题时,RPC补偿电流会在一定程度上加剧两供电臂的电压波动,从而可能引起牵引网欠电压或过电压问题。在保证RPC综合治理效果的前提下,为了既能有效减少RPC补偿容量,又能尽量缓解两供电臂电压波动,本文以供电臂电压波动度和RPC补偿容量作为优化目标,提出一种RPC多目标优化设计方法。本文分析RPC补偿电流加剧两供电臂电压波动的原因,引入供电臂电压波动度指标,建立RPC多目标优化数学模型,并采用粒子群多目标优化算法求解。算例分析和实验验证了该方法可有效减小系统两供电臂电压波动并减少RPC补偿容量。

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	罗培
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	张志文

关键词 ：铁路功率调节器, 电压波动, 补偿容量, 多目标优化, 粒子群算法

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.

Key words： Railway static power conditioner voltage fluctuation compensation capacity multi- objective optimization particle swarm optimization

收稿日期: 2017-12-20 出版日期: 2018-11-27

PACS:

TM922

基金资助:国家自然科学基金（51477046）和湖南省自然科学基金（2018JJ2397）资助项目

通讯作者: 罗培男,1974年生,博士,副教授,研究方向为电力系统电能质量控制。E-mail: lpmq@163.com

作者简介: 杨维民男,1992年生,硕士研究生,研究方向为电力系统电能质量控制。E-mail: 1063249899@qq.com

引用本文:

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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