基于两相三线制变流器的高速铁路负序和谐波综合补偿新方法

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摘要提出一种基于两相三线制变流器的高速铁路负序和谐波综合补偿系统。该补偿系统中, 两单相降压变压器连接两供电臂形成两单相电压, 通过两个电感与两相三线制变流器连接。两相三线制变流器结构包含3个开关臂, 其中一开关臂与两单相电压共用地线连接, 因此使两相三线制变流器中与两个普通单相变流器相比要少一开关臂, 简化了结构。本文提出和分析了该系统的拓扑结构, 建立了相应电气模型, 对两相三线制变流器的工作原理和新结构补偿原理进行了分析, 提出了负序和谐波实时检测方法及控制方法。仿真和实验结果验证了所提出补偿结构及其方法的有效性。

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	施大发
	吴传平

关键词 ：两相三线制变流器, 负序补偿, 谐波抑制, 拓扑结构, 高速铁路

Abstract：An integrated compensation system based on two-phase three-wire converter was proposed to compensate negative sequence and harmonic currents for the high-speed railway traction system. In the proposed compensaor, two step-down transformers are connected to two feeder sections to form two single-phase voltages, which are connected to the two-phase three-wire converter through two inductors. This converter contains three switch arms, one of which is connected to the common ground wire of two single-phase voltages. So, the two-phase converter saves a switch arm comparing with two conventional single-phase converters. In this paper, the novel compensation structure was proposed and analyzed, and related electric model was built to analysis the operation principle of two-phase three-wire converter and the compensation principle of proposed system. The real-time negative sequence and harmonic detection and control method for the system was proposed. Simulation and experimental results have proved the validity of the proposed system and its methods.

Key words： Two-phase three-wire converter negative sequence compensation harmonic suppression topology structure high-speed railway

收稿日期: 2010-09-10 出版日期: 2014-03-20

PACS:	TM13
	TM76

基金资助:湖南省教育厅科研资助项目(11C0481)。

作者简介: 施大发男, 1965年生, 硕士, 副教授, 研究方向为电气化铁路电能质量综合补偿技术, 有源滤波器和无功补偿。吴传平男, 1984年生, 博士研究生, 研究方向为电气化铁路电能质量综合补偿技术、有源电力滤波器和无功补偿。

引用本文:

施大发, 吴传平. 基于两相三线制变流器的高速铁路负序和谐波综合补偿新方法[J]. 电工技术学报, 2012, 27(7): 257-266. Shi Dafa, Wu Chuanping. A Novel Integrated Compensation Method of Negative Sequence and Harmonic for High-Speed Railway Based on Two-Phase Three-Wire Converter. Transactions of China Electrotechnical Society, 2012, 27(7): 257-266.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2012/V27/I7/257

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