지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2023.5
- 수록면
- 1,044 - 1,051 (8page)
이용수
초록· 키워드
오류제보하기
In order to reduce switching loss of T-type three-level inverter (3LT²I), discontinuous pulse width modulation (DPWM) is generally used. When an open circuit fault (OCF) occurs in neutral point (NP) switch, the fault tolerant control (FTC) and NP voltage balance should be realized. Therefore, a novel DPWM strategy for FTC and NP voltage control is proposed. First, the FTC is realized by changing the carriers to reconstruct the switching sequence, which abandons the impossible states caused by the switch fault. Second, a fundamental cycle is divided into two half cycles and the NP current model of them are derived. Next, the optimal clamping mode is selected, which is used to control the NP voltage. Then, an improved sequence is used to avoid unexpected switching actions. Finally, simulated and experimental results validate the effectiveness of the proposed strategy.
목차
Abstract
I. INTRODUCTION
II. ANALYSIS OF 3LT²I AND DPWM STRATEGY
III. PROPOSED DPWM STRATEGY
IV. VALIDATION RESULTS
V. CONCLUSIONS
REFERENCES
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