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논문 기본 정보

자료유형
학술저널
저자정보
Yue Wang (CRRC Zhuzhou Institute) Yaowei Hu (Zhejiang University) Guozhu Chen (Zhejiang University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.16 No.6
발행연도
2016.11
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2,099 - 2,108 (10page)

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초록· 키워드

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The cascaded multilevel converter is widely adopted to medium/high voltage and high power electronic applications due to the small harmonic components of the output voltage and the facilitation of modularity. In this paper, the operation principle of a T-type H-bridge topology is investigated in detail, and a carrier phase shifted pulse width modulation (CPS-PWM) based control method is proposed for this topology. Taking a virtual five-level waveform achieved by a unipolar double frequency CPS-PWM as the output object, PWM signals of the T-type H-bridge can be obtained by reverse derivation according to its switching modes. In addition, a control method for the T-type H-bridge based cascaded multilevel converter is introduced. Then a single-phase T-type H-bridge cascaded multilevel static var generator (SVG) prototype is built, and a repetitive controller based compound current control strategy is designed with the DC-link voltage balancing control scheme analyzed. Finally, simulation and experimental results validate the correctness and feasibility of the proposed modulation method and control strategy for T-type H-bridge based cascaded multilevel converters.

목차

Abstract
Ⅰ. INTRODUCTION
Ⅱ. OPERATION PRINCIPLE OF T-TYPE H-BRIDGE
Ⅲ. SWITCHING STRATEGY FOR T-TYPE H-BRIDGE BASED CASCADED MULTILEVEL CONVERTERS
Ⅳ. CONTROL STRATEGY FOR THE T-TYPE H-BRIDGE BASED CASCADED SVG
Ⅴ. SIMULATION AND EXPERIMENTAL RESULTS
Ⅵ. CONCLUSIONS
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