Design and Implementation of Dual-Frequency Single-Phase Grid-connected Inverter

被引：0
|
作者：
Yang, Liyong [1 ]
Chang, Aoyu [1 ]
Liu, Shuo [1 ]
Chen, Zhigang [2 ]
Yuan, Guofeng [1 ]
机构：
[1] North China Univ Technol, Coll Elect & Control Engn, Beijing, Peoples R China
[2] Univ Sci & Technol Beijing, Coll Automat Engn, Beijing, Peoples R China
来源：
2019 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2019年
基金：
中国国家自然科学基金;
关键词：
Grid-connected inverter; harmonic suppression; inverter efficiency; power loss; FILTER DESIGN; LCL-FILTER;
D O I：
10.1109/ecce.2019.8913108
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In order to improve the quality of the output current and reduce power losses of the grid-connected inverter, a novel parallel dual-frequency single-phase grid-connected inverter is proposed. The low-frequency unit operates at the lower switching frequency to reduce the switching losses, and the high-frequency unit operates at the higher switching frequency to suppress the harmonic current. The main circuit of the inverter is the low-frequency inverter unit, and the high-frequency unit operates in the rectification state as the auxiliary module. This dual-frequency mode reduces switching losses, improves system efficiency, and guarantees the quality of the grid-connected current. This paper introduces the Design and implementation methods of the inverter, as well as the experimental results of the prototype.
引用
收藏
页码：2766 / 2771
页数：6
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