Minimum current stress control method for isolated AC-DC matrix converter

被引：0
|
作者：
Mei Y. [1 ]
Zhao Y. [1 ]
Lu Q. [1 ]
机构：
[1] Inverter Technology Engineering Research Center, North China University of Technology University, Beijing
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2023年 / 27卷 / 07期
关键词：
AC-DC converter; current stress; high-frequency link matrix converter; phase shift angle; phase-shift control; sequential quadratic programming;
D O I：
10.15938/j.emc.2023.07.011
中图分类号：
学科分类号：
摘要：
Aiming at the requirements in isolated AC-DC matrix converter (IAMC) of reducing the cost of power devices, improving efficiency and suppressing electromagnetic interference (EMI), a minimum current stress control method based on improved phase-shifting modulation strategy was proposed. Based on the above control strategy, the key factors affecting the current stress of the converter were studied. A three-dimensional (3D) power model was established, from which the equal power distribution line was obtained. By introducing the power constraint condition and the range of phase shift angle, the current stress was minimized and optimized by the sequential quadratic optimization method under limited conditions, and the optimal phase shift ratio to minimize the current stress was obtained. The simulation and experimental results show that the phase-shifting modulation strategy based on zero vector modulation can realize the coordinated control of front and rear circuits, the power factor is about 0. 96, and the output voltage and current on the DC side are stable and the ripple is small. Therefore, by using the proposed control strategy, the current stress is minimized while ensuring good input and output performances. © 2023 Editorial Department of Electric Machines and Control. All rights reserved.
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页码：98 / 101and121
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