Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07f
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- Pages.1954-1956
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- 1998
A Control Method of the Soft-switching Three-Level V냐
소프트 스위칭되는 3레벨 전압원 인버터의 제어
- Song, In-Seog (Dept. of Control & Instrumentation Eng., Kunsan National Univ.) ;
- Lee, Dong-Ho (Virginia TECH) ;
- Lee, Seong-Ryong (Dept. of Control & Instrumentation Eng., Kunsan National Univ.)
- Published : 1998.07.20
Abstract
The three-level voltage source inverter (VSI) is good topology for high voltage and high power applications where no semiconductor devices are available. However, it has an inherent problem of switching loss and midpoint charge balance. Therefore, this paper presents two ways. The one is to adopt ZCT soft-switching method to the conventional three-level VSI. The another is to be proposed the method of the midpoint charge balance in three-level VSI. To prove the proposed topology, the paper presents a comprehensive evaluation with theoretical analysis, simulation and experimental results.
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