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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2019.5
- 수록면
- 32 - 37 (6page)
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초록· 키워드
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The common-mode voltage (CMV) of transformerless inverters in photovoltaic system should be properly addressed. The conventional CMV reduction methods for voltage source inverters should be modified when applied to the quasi-Z-source inverters with shoot-through states. The shoot-through states in a quasi-Z-source inverter may lead to high-frequency harmonics in the CMV, thus inducing severe leakage currents. Hence, this paper analyzes the CMV in the quasi-Z-source inverter. More importantly, a modified quasi-Z-source inverter that can achieve a constant CMV through model predictive control is discussed. Furthermore, redundant switching vectors are added to reduce the computation burden when the model predictive control is adopted. Simulations are presented to validate the CMV reduction methods.
목차
Abstract
I. INTRODUCTION
II. CMV ANALYSIS IN THE QZSI
III. RSPWM WITH ODD VECTORS FOR MODIFIED QZSI
IV. MODEL PREDICTIVE CONTROL FOR THE QZSI
V. SIMULATION RESULTS
VI. CONCLUSION
REFERENCES
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