전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2002년도 전력전자학술대회 논문집
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- Pages.355-359
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- 2002
DSP320F240을 이용한 PWM-Inverter구동 시스템에서의 전도노이즈 저감을 위한 스위칭 기법
A Switching Technique for Common Mode Voltage Reduction of PWM-Inverter System using the DSP320F240
- Park Hyun Seok (Sung Kyun Kwan University) ;
- Park Kyu Hyun (Sung Kyun Kwan University) ;
- Kim Lee Hun (Sung Kyun Kwan University) ;
- Han Sung Yong (Sung Kyun Kwan University) ;
-
Won Chung Yuen
(Sung Kyun Kwan University)
;
- Kim Young Real (Anyang University)
- 발행 : 2002.07.01
초록
Much attention has been given to EMI effects created in variable speed ac drive system. Zero switching states of inverter control invoke large common mode voltage. This paper focuses on the switching techniques to mitigate common mode voltage. This paper proposes a common-mode voltage reduction method based on sinusoidal pulse width modulation in three phase PWM inverter system. By using three carriers wave displaced by 120 degrees, it is possible to eliminate a common mode voltage pulse In one control period. Simulation and experimental results show that common mode voltages In the proposed technique are reduced more than conventional technique.
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