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A Novel Multilevel Inverter Employing Series Connected Transformers  

박성준 (동명대학 전기과)
강필순 (부산대 전기공학과)
박노식 (㈜한창트랜스 부설 기술연구소)
김철우 (부산대 전자전기통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.8, no.1, 2003 , pp. 9-16 More about this Journal
Abstract
This paper presents an novel multilevel inverter employing series connected transformers to reduce the harmonics of output voltage. The proposed inverter consists of several full-bridge modules and their corresponding transformers. Continuous output voltage levels can be generated from a suitable selection of turns ratio of transformer. And it appears an integral ratio to input DC source. Because of its series operation of transformers, output filter inductor is not required. The validity of the proposed system is verified through the experimental results using a 1.5 [kW] prototype, which can generate a 220 $[V_ac]$ output voltage from $[V_dc]$ input.
Keywords
Multilevel inverter; transformer;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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