한국철도학회:학술대회논문집 (Proceedings of the KSR Conference)
- 한국철도학회 2008년도 춘계학술대회 논문집
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- Pages.1182-1187
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- 2008
동력분산형 고속철도의 변압기 및 컨버터 스위칭 성능 개선 연구
Study on Improving the Performances of Transformer and Convertor Switching Used for the High-Speed EMU
초록
In this research, studied were performance improvements of the power conversion system for the high speed EMU. The object of this research is separated into two parts ; the one is the analysis of the designed transformer and the other is the switching improvement of a parallel PWM converter. The multi-outputs of a transformer must be balanced. However, the output of transformer is interfered and unbalanced in practical operation. To solve these problems, the electromagnetic analyzing model of a transformer is used to minimize the output interference. Also, the improvement of converter switching can reduce the unbalanced output and harmonics.
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