Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)
- 2008.10a
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- Pages.61-63
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- 2008
Effects of stray inductance on low volatge inverter for medium capacity
저압 중용량 인버터에서의 기생 인덕턴스에 의한 영향
- Choi, C.S. (Hyundai Heavy Industry) ;
-
Chun, T.W.
(University of Ulsan)
;
- Kim, S.Y. (University of Ulsan) ;
- Kim, H.K. (University of Kyungpook)
- Published : 2008.10.31
Abstract
An inverter with large capacity has been demanded at a factory automation and diffusion of the energy saving work. As the capacity of inverter is larger, the stary inductance has much influence on both the di/dt of IGBT current, and voltage stress across IGBT. Also, the life of the snubber capacitor may be shortened due to overheating of the snubber capacitor. In this paper, a planar busbar which consists of two layers is applied to N700-series inverter in order to minimize stray inductance. The voltage stress across IGBT is changed by both the DC busbar structure and the capacity of snubber capacitor.
Keywords