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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.11
- 수록면
- 1,490 - 1,499 (10page)
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초록· 키워드
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The modular multilevel converter (MMC) is generally considered to be a promising topology for medium-voltage and high-voltage applications. However, in order to apply it to high-power applications, a huge number of switching devices is essential. The numerous switching devices lead to considerable switching losses, high cost and a larger heat sink for each of the switching device. In order to reduce the switching losses of a MMC, this paper analyzes the performance of the conventional discontinuous pulse-width modulation (DPWM) method and its efficiency. In addition, it proposes a modified novel DPWM method for advanced switching losses reduction. The novel DPWM scheme includes an additional rotation method for voltage-balancing and power distribution among sub modules (SMs). Simulation and experimental results verify the effectiveness and performance of the proposed modulation method in terms of its switching losses reduction capability.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. BASIC MODEL OF THE MMC
Ⅲ. THE PROPOSED DPWM SCHEME
Ⅳ. SIMULATION RESULTS
Ⅴ. EXPERIMENTAL RESULTS
Ⅵ. CONCLUSIONS
REFERENCES
참고문헌 (32)
참고문헌 신청
M. Saeedifard and R. Iravani, “Dynamic performance of a modular multilevel back-to-back HVDC system,” IEEE Trans. Power Del., Vol. 25, No. 4, pp. 2903-2912, Oct. 2010.
L. Zhang, L. Harnefors, and H. P. Nee, “Powersynchronization control of grid-connected voltage-source converters,” IEEE Trans. Power. Syst., Vol. 25, No. 2, pp. 809-820, May 2010.
S. Cole, J. Beerten, and R. Belmans, “Generalized dynamic VSC MTDC model for power system stability studies,” IEEE Trans. Power. Syst., Vol. 25, No. 2, pp. 1655-1662, Aug. 2010.
T. Nam, H. Kim, S. Kim, G. T. Son, Y. H. Chung, J. W. Park, C. K. Kim, and K. Hur, “Trade-off strategies in designing capacitor voltage balancing schemes for modular multilevel converter HVDC,” J. Electr. Eng. Technol., Vol. 11, No. 4, pp. 829-838, Jul. 2016.
S.-M. Kim, J.-S. Lee, and K.-B. Lee, “A modified level-shifted PWM strategy for fault tolerant cascaded multilevel inverters with improved power distribution,” IEEE Trans. Ind. Electron., Vol. 63, No. 11, pp. 7264-7274, Nov. 2016.
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