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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.9
- 수록면
- 1,608 - 1,617 (10page)
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The rapid and correct isolation of faulty submodules (SMs) is of great importance for improving the reliability of modular multilevel converters (MMCs). Therefore, a fast diagnosis method containing fault detection and fault location determination was presented in this paper. An improved incremental predictive model of arm current was proposed to detect failures, and the multi-step prediction method was used to eliminate the negative impact of disturbances. Moreover, a control method was proposed to strengthen the fault characteristics to rapidly locate faulty arms and faulty SMs by detecting the variation rate of the SM capacitor voltage. The proposed method can rapidly and easily locate faulty SMs under different load conditions without the need for additional sensors. The experimental results have validated the effectiveness of the proposed method by using a single-phase MMC with four SMs per arm.
목차
Abstract
I. INTRODUCTION
II. MATHEMATICAL MODEL AND FAULT CHARACTERISTICS OF MMCS
III. PROPOSED FAULT DIAGNOSIS METHOD
IV. EXPERIMENTAL INVESTIGATION
V. CONCLUSIONS
REFERENCES
참고문헌 (17)
참고문헌 신청
N. Flourentzou, V. G. Agelidis, and G. Demetriades, “VSC based HVDC power transmission systems: An overview,” IEEE Trans. Power Electron., Vol. 24, No. 3, pp. 592-602, Feb. 2009.
R. Marquardt, “Modular multilevel converter: An universal concept for HVDC-networks and extended dc-busapplications,” in Proc. ECCE ASIA, pp. 502-507, Jun. 2010.
Y.-J. Jo, T. H. Nguyen, and D.-C. Lee, “Capacitance estimation of the submodule capacitors in modular multilevel converters for HVDC applications,” J. Power Electron., Vol. 16, No. 5, pp. 1752-1762, Sep. 2016.
H. M. Pirouz and M. T. Bina, “Modular multilevel converter based STATCOM topology suitable for medium-voltage unbalanced systems,” J. Power Electron., Vol. 10, No. 5, pp. 572-578, Sep. 2010.
M. Hagiwara, I. Hasegawa, and H. Akagi, “Start-up and low-speed operation of an electric motor driven by a modular multilevel cascade inverter,” IEEE Trans. Ind. Appl., Vol. 49, No. 4, pp. 1556-1565, Apr. 2013.
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