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논문 기본 정보

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(VCtech) (VCtech) (한국교통대) (한국교통대학교) (한국교통대)
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전력전자학회 전력전자학회논문지 전력전자학회 논문지 제28권 제6호
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    초록·키워드

    This paper is a study on the control method of TLBC (Three Level Bidirectional DC/DC Converter). TLBC has the advantage of reducing the voltage stress of semiconductor devices. Since the converter of a railway vehicle, which is a high-voltage system, uses an IGBT, the switching frequency cannot be set high. If the switching frequency is low, it is not possible to set a wide bandwidth, which is closely related to the dynamic characteristics of the controller. This makes it difficult to control the output voltage and current due to rapid load changes. To reduce large fluctuations in output voltage with limited controller bandwidth, a control method that compensates for load current and duty is proposed. This was verified through PSIM simulation analysis and experiments.

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