SOLID-STATE TRANSFORMER IN ISOLATED BIDIRECTIONAL DC/DC CONVERTER EXTENDED UNDER PHASE SHIFT VIRTUAL CURRENT CONTROL STRATEGY

被引：0

作者：

Zheng Z. ^{[1
]}

Jin T. ^{[1
]}

Tao H. ^{[1
]}

Huang T. ^{[2
]}

机构：

[1] School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo

[2] Department of Energy, Politecnico di Torino, Torino

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2024年 / 45卷 / 01期

关键词：

current stress; energy internet; isolated bidirectional DC/DC converter; solid state transformer; virtual current control with extended phase shift;

D O I：

10.19912/j.0254-0096.tynxb.2022-1438

中图分类号：

学科分类号：

摘要：

In this paper，a virtual current control strategy under extended phase shift is proposed，which focuses on the isolated bidirectional DC/DC converter of solid-state transformer. By analyzing the phase shift relationship of the post-stage converter under the extended phase shift transmission power，the optimal solution of the minimum current stress is obtained to improve the transmission efficiency of the converter and reduce the device loss. At the same time，the virtual current control idea is used to estimate the transmission power online to improve the dynamic response performance of the system and reduce the use of current sensors. Finally，the experimental comparison between the virtual current control and the extended phase shift control under the extended phase shift is carried out. It is verified that the virtual current control strategy under the extended phase shift has the advantages of reducing the current stress and significantly improving the dynamic response of the converter. © 2024 Science Press. All rights reserved.

引用

页码：515 / 522

页数：7

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