基于蚁狮优化算法的直流变换器分数阶PIλDμ控制

doi:10.16180/j.cnki.issn1007-7820.2022.11.005

Abstract

Abstract:

In order to improve the response speed and stability of the output voltage of the DC converter, a method using ALO algorithm to improve the fractional order PI^λD^μ controller of the dual active bridge DC converter is proposed in this study. The parameter to be optimized is regarded as the spatial position of the individual ant lion, and the error performance index ITAE of the double active bridge DC converter is used as the objective function. The ALO algorithm is used to search for the global optimal solution of the parameters of the fractional-order PI^λD^μ controller, and then the control optimization of the output voltage is realized. The output voltage performance of dual active bridge DC converters with traditional engineering experience setting integer-order PID, particle swarm algorithm setting fractional PI^λD^μ, and ALO algorithm setting fractional-order PI^λD^μ are simulated and experimentally compared. The results show that the proposed method can shorten the adjustment time, improve the response speed, and enhance the anti-interference ability of the system, which proves the effectiveness and feasibility of the optimization method.

Key words: DC converter, fractional order PI^λD^μ control, ant lion optimization algorithm, parameter tuning, control optimization, ITAE

CLC Number:

TN86

XIAO Haifei,ZENG Guohui,DU Tao,HUANG Bo,LIU Jin. Fractional Order PI^λD^μ Control of DC Converter Based on Ant Lion Optimization Algorithm[J].Electronic Science and Technology, 2022, 35(11): 29-35.

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References 18

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名称	数值
输入电压V₁/V	480
输出电压V₂/V	400
滤波电容C_o₁/μF	100
串联电感L/μH	460
开关频率f/kHz	50
变压器变比n	6∶5
负载电阻R/Ω	128/100

方法	传统PID控制器	PSOFOPID	ALOFOPID
K_p	1.024	0.795 8	0.862 7
K_i	5.150	4.182 4	3.166 2
K_d	3.050	2.790 0	2.530 0
λ	1.000	0.441 3	0.566 1
μ	1.000	0.780 0	0.950 0

性能指标	上升时间/s	超调量/%	调节时间/s
PID	0.018	4.200 0	0.052
PSOFOPID	0.016	2.237 5	0.029
ALOFOPID	0.016	2.292 5	0.026

名称	数值
输入电压V₁/V	48
输出电压V₂/V	60
滤波电容C_o₁/μF	100
串联电感L/μH	460
开关频率f/kHz	50
变压器变比n	4∶5
负载电阻R/Ω	50

性能指标	上升时间/s	超调量/%	调节时间/s
PID	0.015	5.0	0.024
PSOFOPID	0.012	3.4	0.020
ALOFOPID	0.011	3.3	0.018

Fractional Order PI^λD^μ Control of DC Converter Based on Ant Lion Optimization Algorithm

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Fractional Order PIλDμ Control of DC Converter Based on Ant Lion Optimization Algorithm

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Fractional Order PI^λD^μ Control of DC Converter Based on Ant Lion Optimization Algorithm