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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.3
- 수록면
- 504 - 517 (14page)
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This paper presents a novel switching voltage model and an offset-based pulse width modulation (PWM) scheme for multilevel inverters with unbalanced DC sources. The switching voltage model under a DC voltage imbalance will be formulated in general form for multilevel neutral-point-clamped topologies. Analysis of the reference switching voltages from active and non-active switching voltage components in abc coordinates can enable voltage implementation for an unbalanced DC-source condition. Offset voltage is introduced as an indispensable variable in the switching voltage model for multilevel voltage-source inverters. The PWM performance is controlled through the design of two offset components in a subsequence. One main offset may refer to the common mode voltage, and the other offset restricts its effect on the quality of PWM control in related DC levels. The PWM quality can be improved as the switching loss is reduced in a discontinuous PWM mode by setting the local offset, which is related to the load currents. The validity of the proposed algorithm is verified by experimental results.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. SWITCHING VOLTAGE FORMULATION FOR MULTILEVEL INVERTERS UNDER INPUT VOLTAGE IMBALANCE
Ⅲ. SWITCHING VOLTAGE IMPLEMENTATION
Ⅳ. SIMULATION AND EXPERIMENTAL RESULTS
Ⅴ. CONCLUSIONS
REFERENCES
참고문헌 (39)
참고문헌 신청
1. [학술지(정기간행물)] - G. Carrara / 1992 / A new multilevel PWM method- A theoretical analysis / IEEE Trans. Power Electron. 7 (3) : 497 ~ 505
2. [학술지(정기간행물)] - J. Rodríguez / 2002 / Multilevel inverters:A survey of topologies, controls, and applications / IEEE Trans. Ind. Electron. 49 (4) : 724 ~ 738
3. [학술지(정기간행물)] - B. P. McGrath / 2003 / Optimized space vector switching sequences for multilevel inverters / IEEE Trans. Power Electron. 18 (6) : 1293 ~ 1301
4. [학술지(정기간행물)] - N.V. Nho / 2006 / Comprehensive study on Space Vector PWM and carrier based PWM correlation in multilevel invertors / IEE Proceedings Electric Power Applications 153 (1) : 149 ~ 158
5. [학술지(정기간행물)] - S. Busquets-Monge / 2004 / The nearest three virtual space vector PWM – A modulation for the comprehensive neutral-point balancing in the three-level NPC inverter / IEEE Power Electronics Letters 2 (1) : 11 ~ 15
2. [학술지(정기간행물)] - J. Rodríguez / 2002 / Multilevel inverters:A survey of topologies, controls, and applications / IEEE Trans. Ind. Electron. 49 (4) : 724 ~ 738
3. [학술지(정기간행물)] - B. P. McGrath / 2003 / Optimized space vector switching sequences for multilevel inverters / IEEE Trans. Power Electron. 18 (6) : 1293 ~ 1301
4. [학술지(정기간행물)] - N.V. Nho / 2006 / Comprehensive study on Space Vector PWM and carrier based PWM correlation in multilevel invertors / IEE Proceedings Electric Power Applications 153 (1) : 149 ~ 158
5. [학술지(정기간행물)] - S. Busquets-Monge / 2004 / The nearest three virtual space vector PWM – A modulation for the comprehensive neutral-point balancing in the three-level NPC inverter / IEEE Power Electronics Letters 2 (1) : 11 ~ 15
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