电气传动2025，Vol.55Issue(5)：3-12,10.DOI:10.19457/j.1001-2095.dqcd25615
基于IIR逼近的LCL型有源电力滤波器自适应小数延迟重复控制
Adaptive Fractional Delay Repetitive Control of LCL-type Active Power Filter Based on IIR Approximation
摘要
Abstract
In order to improve the compensation effect of LCL-type shunt active power filter,a frequency adaptive decimal delay repetitive control based on IIR filter was proposed.The resonance suppression loop of LCL was designed through root locus and the design result was used as a new control object for repetitive control.The IIR filter used could approximate the decimal delay caused by frequency changes,thereby matching the resonant frequency of repetitive control with the fundamental and harmonic frequencies of the power grid.The adaptive implementation diagram,the phase characteristics of the approximation part,and the design method of the compensator in sequence were presented.Finally,the stabilities of the system were analyzed.Simulation and experimental verification show that the proposed method can improve the steady-state tracking performance and THD of the system.关键词
有源阻尼/逼近/重复控制/最大平坦群延迟/谐波Key words
active damping/approximation/repetitive control/maximum flat group delay/harmonic分类
动力与电气工程引用本文复制引用
谢积锦,黄文东,申康,刘斌,蒙宁佳,张圆圆..基于IIR逼近的LCL型有源电力滤波器自适应小数延迟重复控制[J].电气传动,2025,55(5):3-12,10.基金项目
国家自然科学基金(61963030) （61963030）
