A novel coupled inductor Z-source three-level inverter

被引：5
|
作者：
Wang, Xiaogang [1 ]
Liu, Hua [1 ]
Li, Yitao [1 ]
机构：
[1] Guangzhou Univ, Coll Mech & Elect Engn, 230 Waihuan Xi Rd, Guangzhou 510006, Guangdong, Peoples R China
来源：
IEICE ELECTRONICS EXPRESS | 2017年 / 14卷 / 15期
关键词：
Z-source inverter; coupled inductor; switched inductor; three-level; neutral-point-clamped; CONVERTER;
D O I：
10.1587/elex.14.20170647
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel Z-source three-level inverter based on coupled inductors is proposed. The two inductors in traditional Z-source impedance network are replaced by two coupled inductors. The operating principle is described and the equations of boost factor and voltage stresses are deduced. Comparisons are made with other Z-source three-level inverters, especially the multicell switched inductor Z-source three-level inverter. The two topologies have same boost factor if a specific condition is met, but the proposed inverter uses less components and therefore the reliability is improved. SVPWM method for conventional three-level NPC inverter is easy to apply to the novel inverter after a simple modification. Simulations are conducted to verify the theoretical analysis.
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页数：12
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