Hybrid T-type Multilevel Inverter and Its Modulation Strategy

被引：0

作者：

Wang Y. ^{[1
]}

Ku R. ^{[1
]}

Zhou C. ^{[1
]}

Wang Z. ^{[1
]}

Wang M. ^{[1
]}

机构：

[1] School of Electrical Engineering, Zhengzhou University, Zhengzhou

来源：

Gaodianya Jishu/High Voltage Engineering | 2020年 / 46卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Inverter; Modulation strategy; Multilevel; Switched-capacitor; T-type; Voltage stress;

D O I：

10.13336/j.1003-6520.hve.20190887

中图分类号：

学科分类号：

摘要：

In order to improve the output voltage gain of inverter, to increase the number of AC output levels, and to reduce the voltage stress of switching devices, a hybrid T-type voltage source switched-capacitor multilevel inverter is proposed.A single power input structure is adopted on the DC side of the inverter, and the switched-capacitor network can realize multilevel output on AC side in the absence of H-bridge, meanwhile, the switching devices bear a low voltage stress. The results show that the proposed inverter has strong extension ability, high output voltage gain, and the T-type structure ensures the inverter to have more level output ability. The inverter has a simple structure, and the voltage stress of the switching devices remains unchanged as the output level increases, which ensures the inverter to have the potentials of high voltage and high power application. Moreover, the circuit structure, working principle, modulation strategy and extension method of the proposed inverter are presented, and the proposed inverter is verified by simulation and experiment. © 2020, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：3220 / 3228

页数：8

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