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http://dx.doi.org/10.6113/TKPE.2012.17.4.345

A Study on 120Hz Output Voltage Ripple Reduction of LLC Converter using Resonant Controller  

So, Byong-Chul (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Lee, Sang-Ri (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Kim, Hag-Wone (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Cho, Kwan-Yuhl (Dept. of Control & Instrumentation Eng., Korea University of Transportation)
Hwang, Soon-Sang (R&D Center Dongah Elecomm)
Choi, Eun-Seok (Dept. of Electrical Engineering, KAIST)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.17, no.4, 2012 , pp. 345-352 More about this Journal
Abstract
This paper proposes a new method to reduce 120Hz output voltage ripple of LLC converter using resonant voltage controller. This method can reduce the 120Hz output voltage ripple with very high gain at this frequency by the resonant controller with previous PI voltage controller. The reason why the voltage ripple can be reduced is explained by the Bode diagram comparing with the previous PI controller. The simulation with Matlab/Simulink is carried out for this resonant controller and the simulation results show that resonant controller can reduce the 120Hz output voltage ripple. Experiments with DSP controller also carried out and the experimental results also show that the usefulness of the proposed voltage controller.
Keywords
resonant controller; LLC converter; 120Hz voltage ripple;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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