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http://dx.doi.org/10.6113/TKPE.2013.18.1.1

Characteristics of the Stress Reduction and Output Voltage of ST(Switched Trans) Quasi Z-Source Inverter  

Kim, Se-Jin (Dept. of Electrical Engineering, Chonnam Nat'l University)
Jung, Young-Gook (Dept. of Electrical Engineering, Daebul University)
Lim, Young-Cheol (Dept. of Electrical Engineering, Chonnam Nat'l University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.18, no.1, 2013 , pp. 1-9 More about this Journal
Abstract
This paper proposes a ST(Switched Trans) quasi Z-source inverter using a Switched Trans Cell combing the characteristics of a Switched Inductor Cell and Trans. A DC link inductor of the conventional quasi Z-source inverter is alternated with Switched Trans Cell of the proposed ST quasi Z-source inverter. Trans Cell of the proposed method consists of one Trans and two diodes, and the proposed method has higher and more various boost function than the conventional quasi Z-source inverter by simply changing the turns ratio of primary and secondary of the Trans. The validity of the proposed ST Z-source inverter was confirmed by PSIM simulation and a DSP based experiment under the input voltage 48V and output phase voltage 30V. As a result, when compared with the traditional quasi Z-source inverter, the proposed method has the advantage of the low voltage stress under the same output voltage condition of the voltage.
Keywords
switched trans cell; quasi Z-source inverter; trans winding ratio; voltage boost; voltage stress factor;
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Times Cited By KSCI : 3  (Citation Analysis)
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