Development of Inverter Structure for Reducing Switching Loss Imbalance among Parallel Connection and among Three Phases
ELECTRICAL ENGINEERING IN JAPAN(2020)
摘要
Recently, SiC power devices were developed to reduce the size and weight of the power converter circuit. This paper presents a three-phase inverter structure for reducing imbalances in the switching loss among power modules connected parallel to one another and among the three phases. A proposed double-sided structure achieved an imbalance of less than 2% in the experimental switching loss using SiC power modules. In addition, it is shown that the double-sided structure realized stable switching behavior under four SiC power modules connected in parallel.
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关键词
parallel connection,silicon carbide,stray inductance,switching loss
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