基于等价输入干扰误差估计的欠驱动脉宽调制整流器自抗扰控制

doi:10.16183/j.cnki.jsjtu.2023.508

摘要/Abstract

摘要：

针对电压变换和外部条件等因素引起三相电压型脉宽调制(PWM)整流器工作异常的问题,提出了一种基于等价输入干扰(EID)误差估计的自抗扰控制(ADRC)和新型终端模糊滑模电流控制的控制策略.通过对三相电压型PWM整流器系统的欠驱动特性分析,构建了基于等价输入干扰误差估计的新型终端模糊滑模控制的电流环控制器,以及基于等价输入干扰误差估计的自抗扰控制的电压环控制器的双闭环结构控制器.通过对滑模控制中存在的电流抖振和负序电流问题进行误差估计,提高控制器精度,优化控制效果,抑制电压环控制器系统谐波量,提升电压的响应速率,确保三相电压型PWM整流器在干扰情况下的稳定工作.最后通过仿真实验进行分析,验证了所提控制策略的有效性与优越性.

关键词: 三相电压型脉宽调制整流器, 欠驱动, 等价输入干扰, 终端滑模控制, 自抗扰控制, 模糊控制, 双闭环控制

Abstract:

Aiming at the problem of abnormal operation of three-phase voltage-type pulse width modulation (PWM) rectifier caused by factors such as voltage transformation and external disturbances, a control strategy is proposed that integrates active disturbance rejection control (ADRC) with equivalent input disturbance (EID) error estimation and a new terminal fuzzy sliding mode current control. By analyzing the underactuated characteristics of the three-phase voltage-type PWM rectifier system, a novel dual-closed-loop controller is constructed. The inner current loop adopts a terminal fuzzy sliding mode control strategy based on EID error estimation, while the outer voltage loop employs an ADRC strategy based on EID error estimation. To enhance controller accuracy and optimize control performance, error estimation is applied to mitigate current chattering and negative sequence current issues inherent in sliding mode control. Furthermore, harmonic components in the voltage loop are effectively suppressed, improving the voltage response speed and ensuring the stable operation of the three-phase voltage-type PWM rectifier under disturbance conditions. Finally, the proposed control strategy is validated through simulation experiments, demonstrating its effectiveness and superiority.

Key words: three-phase voltage-type pulse width modulation (PWM) rectifier, underactuated, equivalent input disturbance (EID), terminal sliding control, active disturbance rejection control (ADRC), fuzzy control, dual-loop control

中图分类号:

TP273

黄自鑫, 于澄嵩, 汪伟, 林梦颖, 徐达. 基于等价输入干扰误差估计的欠驱动脉宽调制整流器自抗扰控制[J]. 上海交通大学学报, 2025, 59(8): 1203-1215.

HUANG Zixin, YU Chengsong, WANG Wei, LIN Mengying, XU Da. Active Disturbance Rejection Control for Underactuated PWM Rectifier Based on Equivalent Input Disturbance Error Estimation[J]. Journal of Shanghai Jiao Tong University, 2025, 59(8): 1203-1215.

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输入/输出	模糊规则
$\stackrel{·}{V}$	NB	NM	NS	ZO	PS	PM	PB
Δη_1,2	NB	NB	NM	ZO	PM	PB	PB

参数	取值
电网相电压峰值,U_N/V	80
交流电压频率,f_N/Hz	50
L/mH	3
C/nF	1
R/Ω	0.2
R_L/Ω	40
开关频率,f_s/kHz	10
u_r/V	200

方法	i_d, i_q稳态时间 (稳态运行)/s	i_d, i_q稳态时间 (电压突变)/s	功率因数	响应时间 (稳态运行)/s	响应时间 (电压突变)/s	电网 THD/%
ADRC	0.025	0.02	0.995	0.025	0.02	2.29
本文方法	0.01	0.01	0.999	0.015	0.01	0.44