摘要详情

ID / 提交时间

180 / 2021-10-30 16:23:28

标题

Research on photovoltaic inverter based on improved Z-source network

关键字

Z-source inverter; Inductor current ripple; Boost capacity; Capacitor voltage stress

主题及专题

Power electronics technology and application > Power converter topologies and design

状态

终稿

作者

Yingjun Guo / Hebei University of science and technology

ZhenFang Wang / Hebei University of science and technology；26 Yu Xiang Street

Lulu Zheng / Hebei University of science and technology

Qingqing Zhang / China Suntien Green Energy Corporation Limited

Yifan Chen / College of Electrical Engineering, Hebei University of Science and Technology

Jiawei Xu / China Suntien Green Energy Corporation Limited,

摘要

In order to solve the problems of the traditional Z-source inverter's weak boosting ability and large inductor ripple current, an improved Z-source inverter topology is proposed. The improved Z-source network is composed of a combination of a high-gain boost unit and a symmetrical quasi-Z-source inverter. Compared with a switched inductor quasi-Z source inverter, it has a higher boost capacity and lower capacitor voltage stress under the same duty cycle. Based on the simple boost modulation strategy, the grid-connected design of the improved Z-source inverter is carried out. The modeling and simulation were completed in Matlab/Simulink, and the correctness of the improved Z source topology in the grid-connected system was verified. The improved Z-source inverter can be better adapted to the development needs of high-gain converter low-voltage input occasions.

重要日期

会议日期

07月11日

2023

至

08月18日

2023
11月10日 2021

初稿截稿日期
12月10日 2021

注册截止日期
12月11日 2021

报告提交截止日期

主办单位

IEEE IAS

承办单位

IEEE IAS Student Chapter of Southwest Jiaotong University (SWJTU)
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
IEEE PELS (Power Electronics Society) Student Chapter of HUST