전력조절분배기 저전압 컨버터 모듈의 고장 방지에 대한 연구

Study on the Failure Protection Mechanism for the Low Voltage Converter Module of Power Control and Distribution Unit

Even though many modular converters have several internal protection circuit blocks for various abnormal operation conditions, there are many failure cases on modular converters at real applications. In this paper, the control strategy for failure protection of converters with internal 'In-Hibit' function is investigated. As an example, for the MDl modular converters the in-hibit function application is realized and the test results shows that adopting in-hibit function while converter switching reduces the voltage and current stress. And the reduction of switching stress on converter will decrease failure rate on converters.