Study on the Passive Filter Design of Coal Shearer Traction Inverter
LU Xiao-hui
ZHANG Quan-zhu
DENG Yong-hong
JIANG Huai
MA Na
Abstract：The output voltage waveform form PWM inverter typically contains many high harmonics which have brought a lot of disturbance to the motor.In some serious cases, it can cause motor running fault.According to the high harmonic frequency of the PWM inverter output voltage waveform, we use the LC low-pass filter circuit to filter the output voltage waveform to reduce the total harmonic distortion and get a better inhibitory effect of the ripple.We analyze the harmonic suppression of LC filter, and design the LC filter circuit.At last, we have an experimental study on 6 kW coal traction inverter, then detection and analysis the output waveform.
Keywords：InverterLC FilteringHarmonic EliminationResonance Suppression
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 51-54 )