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A Power Circuit Improvement of the Hybrid System Using Phase Controlled Rectifier and PWM Converter for Magnet Load Power Supply  

Kang, Min-Gu (숭실대학교 대학원 전기공학부, 경기공업대학 메카트로닉스과)
Shon, Jin-Geun (경원대학교 전기공학과)
Jeon, Hee-Jong (숭실대학교 전기공학부)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers P / v.57, no.3, 2008 , pp. 231-235 More about this Journal
Abstract
Thyristor rectifiers are still the preferred choice for large magnet power supplies. However, large harmonic voltages, resulting in large current ripple, and slow dynamic response are major drawbacks of these converters. Joos presented a topology and a control technique for a hybrid large-power high-precision magnet power supply in 1996. The system consists of a phase controlled rectifier (PCR) connected in series with a high-frequency PWM converter. This paper improves the power circuit of the PWM converter using interphase transformer. Simulation result proves effect of the proposed system.
Keywords
Phase Controlled Rectifier; Magnet Load Power Supply; PW Converter; Interphase Transformer;
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