콘텐츠 본문
논문 해외 국제일반학술지 A CASCADED MULTILEVEL INVERTER USING BIDIRECTIONAL H-BRIDGE MODULES
- 학술지 구분 국제일반학술지
- 게재년월 2012-12
- 저자명 정연호공동(교신),강필순
- 학술지명 JOURNAL OF INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS
- 발행처명 Journal of International Conference on Electrical Machines and Systems
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 2
논문 초록 (Abstract)
Abstract – This paper presents a multilevel inverter configuration which is designed by insertion of a bidirectional switch between capacitive voltage sources and a conventional H-bridge module. The modified inverter can produce a better sinusoidal waveform by increasing the number of output voltage levels. By serial connection of two modified H-bridge modules, it is possible to produce 9 output voltage levels including zero. There are 24 basic switching patterns with the 9 output voltage levels. Among the patterns, we select the 2 most efficient switching patterns to get a lower switching loss and minimum dv/dt stress. We then analyze characteristics of Total Harmonic Distortion (THD) of the output voltage with variation of input voltage by computer-aided simulations and experiments.
