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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.9
- 수록면
- 1,186 - 1,194 (9page)
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This paper proposes an improved low frequency Selective Harmonic Mitigation-PWM (SHM-PWM) technique. The proposed method mitigates the low order harmonics of the output voltage up to the 50<SUP>th</SUP> harmonic well and satisfies the grid codes EN 50160 and CIGRE-WG 36–05. Using a modified criterion for the switching angles, the range of the modulation index for non-linear SHM equations is improved, without increasing the switching frequency of the CHB converter. Due to the low switching frequency of the CHB converter, mitigating the harmonics of the converter up to the 50<SUP>th</SUP> order and finding a wider modulation index range, the size and cost of the passive filters can be significantly reduced with the proposed technique. Therefore, the proposed technique is more efficient than the conventional SHM-PWM. To verify the effectiveness of the proposed method, a 7-level Cascaded H-bridge (CHB) converter is utilized for the study. Simulation and experimental results confirm the validity of the above claims.
목차
Abstract
I. INTRODUCTION
II. CASCADED H-BRIDGE STRUCTURE
III. SELECTIVE HARMONIC MITIGATION MODULATION (SHM-PWM) FOR CHB INVERTERS
IV. SIMULATION AND EXPERIMENTAL RESULTS
V. DISCUSSION
VI. CONCLUSIONS
REFERENCES
참고문헌 (32)
참고문헌 신청
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F. Z. Peng, J.-S. Lai, J. W. McKeever, and J. VanCoevering, “A multilevel voltage-source inverter with separate DC sources for static VAr generation,” IEEE Trans. Ind. Appl., Vol. 32, No. 5, pp. 1130-1138, Sep./Oct. 1996.
Q. Song and W. Liu, “Control of a cascade STATCOM with star configuration under unbalanced conditions,” IEEE Trans. Power Electron., Vol. 24, No. 1, pp. 45-58, Jan. 2009.
N. Flourentzou, V. G. Agelidis, and G. D. Demetriades, “VSC-based HVDC power transmission systems: An overview,” IEEE Trans. Power Electron., Vol. 24, No. 3, pp. 592-602, Mar. 2009.
M. Hagiwara, K. Nishimura, and H. Akagi, “A medium-voltage motor drive with a modular multilevel PWM inverter,” IEEE Trans. Power Electron., Vol. 25, No. 7, pp. 1786-1799, Jul. 2010.
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