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논문 기본 정보

자료유형
학술저널
저자정보
Feng Jing (China University of Mining and Technology) Feng-You He (China University of Mining and Technology)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.17 No.6
발행연도
2017.11
수록면
1,480 - 1,489 (10page)

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초록· 키워드

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In this study, a carrier-based pulse-width modulation (PWM) method for two-level voltage source inverters in the over-modulation region is proposed. Based on the superposition principle, the reference voltage vectors outside the linear modulation boundary are adjusted to relocate to the vector hexagon, while their fundamental magnitudes are retained. In accordance with the adjusted reference vector, the corresponding modulated waves are respectively deduced in over-modulation mode I and II to generate the gate signals of the power switches, guaranteeing the linearity of the fundamental output phase voltage in the over-modulation region. Moreover, due to the linear relationship between the voltage vector and the duty ratios, the complicated sector identification and holding angle calculation found in previous methods are avoided in the modulated wave synthesis, which provides great simplicity for the proposed carrier-based over-modulation strategy. Experimental results demonstrate the effectiveness and validity of the proposed method.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. PRINCIPLE OF THE CARRIER-BASED PWM METHOD FOR TWO-LEVEL VSIS
Ⅲ. SUPERPOSITION METHOD OF THE OVER-MODULATION STRATEGY
Ⅳ. SIMPLIFIED CARRIER-BASED PWM STRATEGY IN THE OVER-MODULATION REGION
Ⅴ. EXPERIMENTAL RESULTS
Ⅵ. CONCLUSIONS
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