Research on fractional-order sliding-mode control of a direct matrix converter

被引：0
|
作者：
Yang X. [1 ]
Fang H. [1 ]
Jia W. [2 ]
机构：
[1] School of Automatic Engineering, Shanghai University of Electric Power, Shanghai
[2] Shanghai Solar Energy Engineering Technology Research Center, Shanghai
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2022年 / 50卷 / 19期
基金：
中国国家自然科学基金;
关键词：
direct matrix converter; fractional-order sliding-mode control; output compensation; power factor control; unbalanced grid voltages;
D O I：
10.19783/j.cnki.pspc.211649
中图分类号：
学科分类号：
摘要：
The direct matrix converter is an AC-AC converter with no intermediate DC link. However, like the traditional indirect matrix converter, the predicted performance of matrix converters drastically reduce when operating under unbalanced grid voltages. This paper proposes a fractional-order sliding-mode control to improve the output performance of matrix converters. First, the topology and mathematical model of the matrix converter are analyzed to obtain the output power with an unbalanced grid. The output compensation is designed according to the output power expressions. Secondly, combined with the control objective and the mathematical model of direct matrix converter, a fractional-order sliding-mode control applied to the unbalanced power grid is designed. The designed controller aims to achieve constant active power and input unity power factor. Then, combined with output compensation, the output active power has no pulsation, and the reactive power can track the reference signal. Finally, a corresponding simulation model is established in Matlab/Simulink and RT-LAB experimental platform to verify the effectiveness of the algorithm. The experimental results show that the control performance of the fractional-order sliding-mode control is superior to traditional PI control. © 2022 Power System Protection and Control Press. All rights reserved.
引用
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页码：158 / 166
页数：8
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