Harmonic Analysis of VFD’s
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 5
Abstract
VFD’s are the power electronic control devices that provide unique and beneficial opportunities for AC induction motors control. VFD’s offer process control through speed variation and starting control for motors. VFD’s convert/rectify voltage from a constant frequency alternating current (AC) power system to create a direct current (DC) voltage link, and then electronically invert the DC voltage link to create a variable voltage variable frequency output. While doing this conversion the supply is rectified and inverted using power semiconductor devices. This conversion process generates harmonics in the line current waveform and power gets polluted.
Authors and Affiliations
Poonam Kaur1 , Ritula Thakur2
Keywords
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