谐波对电除尘电磁振打系统的影响与抑制OA

With the wide application of large-capacity high-frequency switching power supplies(HFSP)in electrostatic precipitators(ESP),the power quality problems they bring,especially harmonic interference,pose new challenges to other subsystems of ESP.This paper analyzes the interference impact on the electromagnetic rapper control system caused by the rich harmonics generated by the 2.6A/72kV large-capacity HFSP configured in a certain power plant through the power center busbar of the ESP.This paper explores the internal mechanism of abnormal operation of control systems caused by harmonics,including the deterioration of power quality,signal sampling distortion,and the runaway of single-chip microcomputer programs,and proposes corresponding harmonic suppression and anti-interference improvement measures,providing a theoretical basis and practical reference for ensuring the stable and efficient operation of modern ESP.