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Low-cost Single-Phase HAIf-bridge Active Power Filter with One Current Sensor  

김길동 (한국철도기술연구원)
신정렬 (한국철도기술연구원)
이우동 (한국철도기술연구원)
박현준 (한국철도기술연구원)
김희중 (LG 산전연구소)
Publication Information
Journal of the Korean Society for Railway / v.7, no.3, 2004 , pp. 173-179 More about this Journal
Abstract
This paper describes a low-cost single-phase active power filter, which consists of a half-bridge PWM inverter with a simple control circuit. In order to verify the performance of proposed active power filter, many computer simulations with EMTP codes and experimental works with a hardware prototype were done. Both results confirm that the proposed active power filter shows excellent performance to eliminate the harmonics generated in the single-phase non-linear load. The active power filter has advantage of low implementation cost and compact size, using a half-bridge inverter and a simple control circuit with only one current sensor. So, it can be fabricated as a plug-in type. This paper shows the necessity and a good possibility to apply such advantage to the electric railway system.
Keywords
PWM; EMIP; P-I; d-q;
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  • Reference
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