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A Study on the Space Vector PWM Inverter without Dead Time  

Seo Il-Soo (인텍FA연구원)
Song Eui-Ho (창원대 공과대학 제어계측공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.10, no.1, 2005 , pp. 38-44 More about this Journal
Abstract
In a voltage source inverter, the dead time is necessary to prevent short circuits in the dc link. The dead time effect appears as a distortion of output voltages and currents. In recent years, the dead time compensation methods have been investigated in many literatures. This paper presents not the dead time compensation by sensing and calculation but the dead time elimination. The proposed inverter system doesn't need to sense load current and to calculate dead time. Adding some transformers to each leg, dead times in the inverter system are eliminated automatically. The proposed method is analyzed on each mode and verified through simulation results.
Keywords
VSI; SVPWM; Dead Time; Load current; Transformer;
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