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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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

Received: 10 September 2010 Published: 20 March 2014

PACS:	TM13
	TM76

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	Shi Dafa
	Wu Chuanping

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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[J]. Transactions of China Electrotechnical Society, 2012, 27(7): 257-266.

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