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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2023.5
- 수록면
- 2,246 - 2,252 (7page)
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초록· 키워드
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In this paper, an improved capacitor voltages balancing control for five-level hybrid flying-capacitor (5L-HFC) inverters is proposed. The 5LHFC inverter has advantages of having lower voltage stresses of active switches comparing to the five-level active neutral-point-clamped (5L-ANPC) inverter. The 5L-HFC inverter requires either auxiliary balancing circuits or a control algorithm utilizing phase-shifted PWM (PSPWM) to achieve capacitor voltage balancing. However, the former method requires the additional devices and the latter incurs worse THD of line-to-line voltage. In this paper, thus, a novel capacitor voltage balancing control method with better THD and without auxiliary circuits for the 5L-HFC inverter by controlling the duty ratios and selecting the redundant states based on COPWM. The proposed method has been verified through simulation result at various conditions.
목차
Abstract
I. INTRODUCTION
II. STRUCTURE AND OPERATION OF 5L-HFC INVERTER
III. CAPACITOR VOLTAGES BALANCING CONTROL
IV. COMPARISON OF BALANCING CONTROL METHODS FOR 5L-HFC INVERTER
V. SIMULATION RESULTS
VI. CONCLUSION
REFERENCES
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