TITLE:
Power Factor Improvement of AC-DC Converter Based on Separately Excited DC Motor Using Passive Filter
AUTHORS:
Shazia Baloch, Mukhtiar Ahmed Mahar, Raza Haider, Shakeel Ahmed
KEYWORDS:
DC Motors, AC-DC Converters, Power Factor, Total Harmonic Distortion, Passive Filters
JOURNAL NAME:
Open Journal of Energy Efficiency,
Vol.5 No.3,
July
14,
2016
ABSTRACT: In industries DC motor drives are very essential due to their high performance applications such as its reliability, ease of control, low cost and simplicity. And speed control of these motors is very easy due to power electronic AC-DC converters. These power electronic converters are with prominent low power factor and higher Total Harmonic Distortion (THD). These converters operate only for short time resulting non-sinusoidal waveform. This problem of harmonic distortion can be mitigated by reshaping the non-sinusoidal waveform to pure sine wave. Different wave shaping techniques have been developed by using different filters among which one is tuned passive filter. This paper proposed power factor improvement and harmonic mitigation of AC-DC converters based on separately excited DC motor using tuned passive filter. In this context experimental model is designed and results are analyzed by power quality analyzer.