Research on HAPF Control Based on LMS Adaptive Filter
LIU Menghu
RONG Xiang
LIU Jiankun
CHEN Wenya
Abstract：With the widespread application of power electronic equipment in various fields of industrial production,the issue of harmonic pollution in power grids has become increasingly severe.Hybrid Active Power Filter(HAPF),as an effective harmonic suppression method,has garnered widespread attention.However,traditional harmonic current detection algorithms were constrained by the performance of low-pass filters(LPFs),leading to a contradiction between harmonic detection accuracy and response speed in the system,often limiting the filtering effect.Therefore,an HAPF control strategy based on an LMS adaptive filter was adopted to address the issue of unable to balance dynamic and static performance.Finally,a system with an input voltage of 220 V,a rated frequency of 50 Hz,and a harmonic source of a three-phase rectifier with variable load was designed,and the correctness of this scheme was verified using Matlab/Simulink.The research results showed that the HAPF controller based on the LMS adaptive filter had good filtering effects,strong accuracy and real-time performance,and could significantly improve the system's control performance and anti-interference capability,with broad application prospects.
Keywords：hybrid active power filtersharmonic suppressionLMS adaptive filters
Publication Date：2025-10-30
Online Publishing Date：2025-12-24(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )