Dual-Loop Voltage-Current Control of a Fractional-Order Buck-Boost Converter Using a Fractional-Order PIλ Controller

被引：2
|
作者：
Xie, Lingling [1 ]
Wan, Di [1 ]
Qin, Rui [2 ]
机构：
[1] Guangxi Univ, Sch Elect Engn, Guangxi Key Lab Power Syst Optimizat & Energy Savi, Nanning 530004, Peoples R China
[2] Liuzhou Elect Supply Bur, Liuzhou 545005, Peoples R China
来源：
FRACTAL AND FRACTIONAL | 2023年 / 7卷 / 03期
关键词：
Buck-Boost converters; fractional-order; PI lambda controller; SSA;
D O I：
10.3390/fractalfract7030256
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Based on the fact that the inductor and capacitor are of a non-integer order by nature, to provide a more accurate theoretical basis for the optimal control of the converter, the fractional-order model of the Buck-Boost converter in the continuous mode of current is established according to the fractional-order calculus theory. The fractional-order PI? control system of the fractional-order Buck-Boost converter is designed to compare the performance of the integer-order PI controller with the fractional-order controller. Secondly, the sparrow search algorithm is applied to the optimal design of the fractional-order PI? control system of the fractional-order Buck-Boost converter to improve the system's phase margin, stability, and robustness. Finally, the simulation is verified on the Matlab/Simulink simulation platform and compared with the integer-order PI controller.
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页数：16
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