Diode-assisted Optimized Y-source Inverter with Low DC Link Voltage Spike

被引：0

作者：

Liu H. ^{[1
]}

Teng Y. ^{[1
]}

Lu Z. ^{[1
]}

Wang W. ^{[2
]}

机构：

[1] Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology, Ministry of Education, Northeast Electric Power University, Jilin

[2] School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin

来源：

Gaodianya Jishu/High Voltage Engineering | 2023年 / 49卷 / 06期

基金：

中国国家自然科学基金;

关键词：

absorption circuit; coupled inductance; impedance source inverter; leakage inductance; voltage spike; Y-source inverter;

D O I：

10.13336/j.1003-6520.hve.20221005

中图分类号：

学科分类号：

摘要：

The introduction of coupling inductor further improves the boost capability of the impedance source inverter, and improves the constraint relationship between the modulation ratio and the pass-through duty cycle in the traditional Z-source topology. However, the existence of leakage inductance leads to DC link voltage spikes in the inverter, which deteriorates the operating conditions of the switching devices and limits the power rating of the inverter. In order to solve the above problems, taking the optimized Y-source inverter as the research object, we propose an optimized Y-source topology with low DC link voltage spikes. The proposed topology utilizes a passive absorption loop to ensure a smooth transition of the DC link voltage during inverter state switching. In addition, the new topology inherits all the advantages of the optimized Y-source inverter, and has a higher boost capability under the same shoot-through duty cycle. Finally, by comparing the simulation and experimental results of the two topologies, the superior performance of the new topology in boosting capability and suppressing voltage spikes is verified. © 2023 Science Press. All rights reserved.

引用

页码：2569 / 2579

页数：10

共 24 条

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