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A New Inverter Topology for High Voltage and High Power Applications  

김태훈 (서울산업대학 제어계측학과)
최세완 (서울산업대학 제어계측학과)
박기원 (포스콘 기술연구소)
이왕하 (포항산업과학연구원)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.52, no.2, 2003 , pp. 80-86 More about this Journal
Abstract
In this paper, a new three-phase voltage-source inverter topology for high voltage and high Power applications is proposed to improve the quality of output voltage waveform. A chain converter which is used as an auxiliary circuit generates a ripple voltage and injects it to the conventional 12-step inverter. Thus, the injection of the ripple voltage results in 36-step operation with a link and 60-step operation with two links. The proposed inverter is compared to the conventional multilevel inverter in the viewpoint of ratings of phase- shifting transformers, switching devices and capacitors employed. The proposed scheme is simple to control capacitor voltages compared to the conventional schems and is cost effective for high voltage and high power application over several tens of MVA. The proposed approach is validated through simulation, and the experimental results are provided from a 2KVA laboratory prototype.
Keywords
DCMLI; HB-cascade;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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