A Single-Phase Single-Stage Switched-Boost Inverter With Four Switches
A Single-Phase Single-Stage Switched-Boost Inverter With Four Switches
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DOI：
10.1109/tpel.2017.2754547
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发表时间：
2018-08
影响因子：
6.7
通讯作者：
Minh‐Khai Nguyen;Tan-Tai Tran
中科院分区：
文献类型：
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作者：
Minh‐Khai Nguyen;Tan-Tai Tran
提出了一种新型的四开关管单相单级开关升压逆变器。与准Z源逆变器和准开关Boost逆变器(QSBI)一样，该逆变器具有输入电流连续、降压/升压单级变换、抗冲击能力强等特点。与qSBI逆变器相比，该逆变器多用了一个电容，少了一个开关。文中给出了逆变器的工作原理、脉宽调制控制策略、参数设计准则和仿真结果。为了验证所提出的逆变器的性能，搭建了一个800W的样机，在单机模式和并网模式下输出电压为110V/50 Hz。仿真和实验结果与理论分析相吻合。
This paper proposes a new single-phase single-stage switched-boost inverter with four switches. Like the quasi-Z-source inverter and quasi-switched boost inverter (qSBI), the proposed inverter has the main features as continuous input current, buck/boost voltage with single-stage conversion, and shoot-through immunity. Compared to the qSBI, the proposed inverter uses one more capacitor and one less switch. This paper presents the operating principles, pulse-width modulation control strategy, parameter design guidelines, and simulation results for the proposed inverter. To verify the performance of the proposed inverter, an 800-W prototype was built with an 110 V/50 Hz output voltage in stand-alone and grid-connected modes. The simulation and experimental results matched those of the theoretical analysis.