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180 / 2021-10-30 16:23:28
Research on photovoltaic inverter based on improved Z-source network
Z-source inverter; Inductor current ripple; Boost capacity; Capacitor voltage stress
Power electronics technology and application > Power converter topologies and design
Final Paper
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,
 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.
Important Date

  • Conference Date

    Jul 11

    2023

    to

    Aug 18

    2023

  • Nov 10 2021

    Draft paper submission deadline

  • Dec 10 2021

    Registration deadline

  • Dec 11 2021

    Contribution Submission Deadline

Sponsored By
IEEE IAS
Organized By
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
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