Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2001.10a
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- Pages.438-442
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- 2001
A Switching Technique for Common Mode Voltage Reduction of 2-Level Inverter
- Yun Hwan-Kyun (Sung Kyun Kwan University) ;
- Kim Lee-Hun (Sung Kyun Kwan University) ;
- Kim Jun-Ho (Sung Kyun Kwan University) ;
-
Won Chung-Yuen
(Sung Kyun Kwan University)
;
- Choi Gi-Su (IN-TECH FA CO., Ltd.) ;
- Bae Joung-Hwan (IN-TECH FA CO., Ltd.)
- Published : 2001.10.01
Abstract
Much attention has given to EMI effects created by variable speed ac drive system. This paper focuses on the switching technique to mitigate common mode voltage. Zero switching states of inverter control invoke large common mode voltage. Using inversed carrier wave, zero switching states are removed. In addition, proposed technique is easy to apply to existing 2-level inverter design. And common mode mitigation technique for sinusoidal PWM is also presented. Proposed switching technique is implemented with a 2.2kw 1735rpm induction motor.