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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2023.5
- 수록면
- 649 - 654 (6page)
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초록· 키워드
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A modular multilevel converter (MMC) based on single-delta bridge-cells is a promising multilevel converter for various high-voltage application. When the cluster voltage synthesis method based on the conventional triangular carrier wave of phase-shifted pulse width modulation (PSPWM) is applied, the quality of the cluster output voltage differs depending on the parity (which is the property of an integer of whether it is even or odd) of the number of cells per cluster. These differences of the output voltage quality are caused by the different effective level of cluster output voltage under the conventional triangular carrier based PSPWM. In other words, the total harmonic distortion (THD) of the cluster output voltage is indirectly related to the number of levels of the cluster output voltage. In this paper, the THD of the cluster output voltage is analyzed according to the relationship between the number of cells per cluster and the type of the carrier. In addition, the recommended carrier type for PSPWM is determined by whether the number of cells per cluster is odd or even. To demonstrate the analysis and comparison in this paper, a full-scale real-time simulation has been conducted.
목차
Abstract
I. INTRODUCTION
II. THD ANALYSIS OF OUTPUT VOLTAGE ACCORDING TO PSPWM CARRIERS
III. SIMULATION RESULTS
IV. CONCLUSION
REFERENCES
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