한국조명전기설비학회:학술대회논문집 (Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference)
- 한국조명전기설비학회 2004년도 춘계학술대회 논문집
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- Pages.347-352
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- 2004
자기부상열차용 DC-DC 전원장치에 관한 연구
A Study on DC-DC Power Supply for Maglev
- 정춘병 (㈜한국엔지니어링) ;
- 조주현 (㈜인텍에프에이) ;
- 조정민 (명지대) ;
- 전기영 (명지대) ;
- 이상집 (명지대) ;
- 오봉환 (명지전문대학) ;
- 이훈구 (용인송담대학) ;
- 한경희 (명지대)
- Chung, Choon-Byung ;
- Cho, Ju-Hyun ;
- Jho, Jung-Min ;
- Jeon, Kee-Young ;
- Lee, Sang-Chip ;
- Oh, Bong-Hwan ;
- Lee, Hoon-Gu ;
- Han, Kyung-Hee
- 발행 : 2004.05.07
초록
The author present a modified multi-loop algorithm including feedforward for controlling a 55kW step down chopper in the power supply of Maglev. The control law for the duty cycle consists of three terms. The first is the feedforward term which compensates for variations in the input voltage. The second term consists of the difference between the slowly moving inductor current and output current. The third term consists of proportional and integral terms involving the perturbation in the output voltage. This perturvation is derived by subtracting the desired output voltage from the actual output voltage. The proportional and integral action stabilizes the system and minimizes output voltage error. In order to verify the validity of the proposed multi-loop controller, simulation study was tried using Matlab simulink.
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