Research of single-stage boost-buck inverter with three-switch devices

被引：0

作者：

Ye M. ^{[1
]}

Cai H. ^{[2
]}

Song P. ^{[1
]}

机构：

[1] School of Electrical and Automation, East China Jiaotong University, Nanchang

[2] Jiangxi Electric Power Design Institute, Nanchang

来源：

Gaodianya Jishu/High Voltage Engineering | 2016年 / 42卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Buck-boost inverter; Distributed generation; Grid generation; Harmonic distortion; Small-signal model; Topology configuration;

D O I：

10.13336/j.1003-6520.hve.20160926009

中图分类号：

学科分类号：

摘要：

In order to solve the problem that the input source of distributed generator system usually varies in a large scale, a new 3-switch single-stage single-phase buck-boost inverter is proposed. The inverter can meet a wide input voltage range with independent load operation and power grid operation, and it has the least switch, simple control, and high efficiency. By analyzing each working mode equivalent circuit and mathematical modeling, we compare the difference between discontinuous conduction mode(DCM) and continuous conduction mode(CCM) control mode, deduce the AC small signal model by DCM, and put forward a new closed-loop SPWM control strategy. The simulation and experimental results verify that this topology can operate under standalone and grid-connected when input voltage varies from 50 V to 300 V. Furthermore, output current waveforms can satisfy the requirements of grid, and the efficiency of whole inverter exceeds 90%. © 2016, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：3092 / 3101

页数：9

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