采用积分线性二次控制的电铁负序控制系统

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摘要针对电铁供电系统的负序问题,讨论一种电气化铁道负序控制系统。建立该系统通用三相模型,并在此基础上提出一种带积分器的线性二次控制器及相关均压控制策略。该控制系统在满足补偿要求的前提下,可有效提高控制的灵活度、运算效率,并对主变压器三相输出端口的电压扰动和连接电抗电感值的变化表现出较强鲁棒性。仿真和实验验证了该系统的正确性。

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	李世军
	罗隆福
	胡斯佳
	张志文
	谢斌

关键词 ：电气化铁道, 负序, 统一三相坐标系, 积分线性二次型控制器, 均压

Abstract：This paper focused on a railway negative sequence control system to deal with the negative sequence related problems in electrical railway power system. Its universal three-phase model is proposed firstly. Besides, an integrator associated linear quadratic controller and its related voltage balance controller are also presented in this paper. In the premise of getting good compensating performance, the system can significantly enhance the controlling flexibility and the calculating efficiency. Moreover, the perturbations from output voltage and the coupling inductance of the main transformer can also be overcome as well. Finally, simulation and experimental results validate the correctness of the conception.

Key words： Electrical railway negative sequence universal three phase frame integrator associated linear quadratic controller voltage balance

收稿日期: 2016-01-07 出版日期: 2017-05-26

PACS:

TM922

基金资助:国家自然科学基金项目（51477046,51377001）、湖南省战略性新兴产业科技攻关项目（2014GK1037）和国家电网重大科技专项（5216A014007V）资助

通讯作者: 李世军男,1982年生,博士研究生,研究方向为交直流电能变换理论与新技术,电气化铁道电力系统电能质量分析与控制,电气装备新技术。E-mail: B12090018@hnu.edu.cn

作者简介: 罗隆福男,1962年生,教授,博士生导师,研究方向为交直流电能变换及其装备制造,电气化铁道电力系统电能质量分析与控制。E-mail: llf@hnu.edu.cn

引用本文:

李世军, 罗隆福, 胡斯佳, 张志文, 谢斌. 采用积分线性二次控制的电铁负序控制系统[J]. 电工技术学报, 2017, 32(10): 273-282. Li Shijun, Luo Longfu, Hu Sijia, Zhang Zhiwen, Xie Bin. An Integrator Associated Linear Quadratic Controller Based Electrical Railway Negative Sequence Component Control System. Transactions of China Electrotechnical Society, 2017, 32(10): 273-282.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2017/V32/I10/273

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