A shoot-through current suppressed Y-source inverter with low voltage spike

被引：0

作者：

Ma, Jianwei ^{[1
,2
]}

Liu, Hongpeng ^{[1
]}

Wei, Lai ^{[1
]}

Zhang, Wei ^{[1
]}

Zhang, Shuxin ^{[1
]}

机构：

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

[2] Marketing Department, State Grid Corporation of China, Beijing

来源：

Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2024年 / 28卷 / 08期

关键词：

coupled inductor; power losses analysis; shoot-through current suppression; voltage and current stresses; voltage spike; Y-source inverter;

D O I：

10.15938/j.emc.2024.08.008

中图分类号：

学科分类号：

摘要：

To solve the high DC-link voltage and shoot-through current in traditional coupled-inductor impedance-source inverters, a shoot-through current suppressed Y-source inverter with low voltage spike was proposed. The shoot-through and non-shoot-through operational modes were analyzed in detail and key waveforms were provided. By applying current-second and voltage-second integrated over a switching period, the voltage and current stresses of the key devices was derived. Compared with improved Y-source inverter, the proposed topology applies lower shoot-through ratio when considering same voltage gain and winding factor, which increases the modulation ratio range and improves the efficiency of DC-link voltage, and reduces DC-link voltage spikes. Moreover, it can suppress the increment of shoot-through current. When the DC-link voltage is the same, the proposed topology requires a smaller shoot-through time, resulting in a less conduction losses in shoot-through state. Finally, a 240 W prototype was built and experimental results verify the superiority of the proposed Y-source inverter. © 2024 Editorial Department of Electric Machines and Control. All rights reserved.

引用

页码：72 / 82

页数：10

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