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논문 기본 정보

자료유형
학술저널
저자정보
Won-Sang Im (Pusan National University) Jang-Sik Kim (Pusan National University) Jang-Mok Kim (Pusan National University) Dong-Choon Lee (Yeungnam University) Kyo-Beum Lee (Ajou University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.12 No.1
발행연도
2012.1
수록면
120 - 127 (8page)

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초록· 키워드

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Fault diagnosis technique of electrical drives is becoming more and more important, since voltage fed converter system has become industrial standard in many applications. Many studies have been conducted an inverter fault diagnosis for induction motors. However, there are few researches about fault diagnosis of 3-phase ac/dc PWM (Pulse Width Modulation) converter compared to the dc/ ac inverter. The ac/dc converter is the opposite of dc/ac inverter at current flow. Also, inverter and converter have different current patterns under the same condition of IGBT (Insulated gate bipolar transistor) open switch fault. Therefore, it is difficult to apply intact diagnosis methods of inverter to the converter. This paper proposes modified fault detection methods for IGBT open switch fault in 3-phase ac/dc PWM converter by modifying established fault diagnostic methods for dc/ac inverters.

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Abstract
I. INTRODUCTION
II. COMPARISON OF IGBT OPEN SWITCH FAULT IN INVERTER AND CONVERTER
III. AN APPLICATION OF EXISTING INVERTER METHODS FOR AC/DC PWM CONVERTER
IV. MEASUREMENT RESULTS
V. CONCLUSIONS
ACKNOWLEDGMENT
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