Modulation Techniques for a Modified Three-Phase Quasi-Switched Boost Inverter With Common-Mode Voltage Reduction

被引：19
|
作者：
Duong, Truong-Duy [1 ]
Nguyen, Minh-Khai [2 ]
Tran, Tan-Tai [1 ]
Lim, Young-Cheol [1 ]
Choi, Joon-Ho [1 ]
Wang, Caisheng [2 ]
机构：
[1] Chonnam Natl Univ, Dept Elect Engn, Gwangju 61186, South Korea
[2] Wayne State Univ, Dept Elect & Comp Engn, Detroit, MI 48202 USA
来源：
IEEE ACCESS | 2020年 / 8卷 / 08期
基金：
新加坡国家研究基金会;
关键词：
Inverters; Modulation; Support vector machines; Leakage currents; Topology; Virtual private networks; Switches; Z-source inverter; quasi-switched boost inverter; single-stage inverter; common-mode voltage; transformerless PV system; space vector pulse-width modulation; LEAKAGE CURRENT;
D O I：
10.1109/ACCESS.2020.3020635
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In a single-stage buck-boost quasi-switched boost inverter (qSBI), the shoot-through state insertion causes high amplitude common-mode voltage. Consequently, the qSBI becomes less attractive in transformerless photovoltaic (PV) systems. In this paper, a novel space vector pulse-width modulation for a modified qSBI is introduced to reduce the magnitude of common-mode voltage and push the modulation index up to 1. By properly choosing the shoot-through interval time, shoot-through states are considered to be inserted for boosting voltage and also reducing the THD value of the output voltage. The mathematical analysis and operating principles of the converter are discussed and verified through PSIM simulations. Finally, an experimental prototype is validated based on a TMS320F28335 DSP microcontroller and a DE0-Nano FPGA digital control platform.
引用
收藏
页码：160670 / 160683
页数：14
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