Modified Single-Phase Z-Source Converter Based on Gamma Structure

被引：5
作者：
Mousavi, S. M. J. [1 ]
Babaei, Ebrahim [1 ]
Sabahi, Mehran [1 ]
机构：
[1] Univ Tabriz, Fac Elect & Comp Engn, Tabriz, Iran
来源：
2020 11TH POWER ELECTRONICS, DRIVE SYSTEMS, AND TECHNOLOGIES CONFERENCE (PEDSTC) | 2020年
关键词：
Z-source; Gamma-Z-source; shared ground; safe commutation method; without output filter;
D O I：
10.1109/pedstc49159.2020.9088446
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a modified single-phase Gamma-Z-Source converter is proposed. The proposed converter, like other single-phase Z-source converters, has the capability of boost non-inverting, buck inverting and shared ground. Also, due to eliminating output filter the converter volume and size is reduced. The safe commutation method is employed to protect switches against voltage and current overshoots without using any snubber circuit. In order to produce high voltage gain a coupled inductor is used. Therefore, in addition to the duty cycle, the voltage gain can be controlled by the coupled inductor turn ratio. In the gamma structure, by reducing the coupled inductor turn ratio, can be achieved greater voltage gain which this feature reduces the coupled inductor winding costs. The proposed converter is analyzed in different operation modes and simulation results are presented in PSCAD software to validation of the calculated relationships and its performance.
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页数：6
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