Optimization Strategy for Output Voltage of CCM Flyback Converter Based on Linear Active Disturbance Rejection Control

被引：0

作者：

Yu, Yannan ^{[1
,2
]}

Kong, Mei ^{[2
]}

Yan, Jichi ^{[1
,2
]}

Lu, Yeqin ^{[2
]}

机构：

[1] Guilin Univ Technol, Educ Dept Guangxi Zhuang Autonomous Reg, Key Lab Adv Mfg & Automat Technol, Guilin 541006, Peoples R China

[2] Guilin Univ Technol, Coll Mech & Control Engn, Guilin 541006, Peoples R China

来源：

APPLIED SCIENCES-BASEL | 2023年 / 13卷 / 23期

关键词：

flyback converter; linear active disturbance rejection control; PID control; immunity to disturbances; IMPLEMENTATION; DCM;

D O I：

10.3390/app132312786

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

To solve the problem of system output voltage fluctuation caused by interferences such as load fluctuation and internal inductor parameter perturbation in a flyback converter, a second-order linear active disturbance rejection control (LADRC) strategy based on output voltage is proposed in this paper. A small-signal model of a CCM flyback converter is established, and the equivalent transfer function of voltage control based on second-order LADRC is derived. A second-order LADRC is constructed, and a parameter design method for the controller is proposed. The response characteristics of the output voltage of the converter under five internal and external disturbances of different control strategies are compared and studied using MATLAB R2022b/Simulink simulation software, and a CCM flyback converter experimental platform based on dSPACE is built to verify the corresponding comparative experiments. The simulation and experimental results jointly verify the superiority of the control strategy for the anti-interference and robustness of the output voltage of the CCM flyback converter.

引用

页数：16

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