Performance Analysis of Three Phase Induction Motor with AC Direct and VFD
The electrical machine analysis and performance calculation is a very important aspect of efficient drive system design. The development of power electronics devices and power converters provide smooth speed control of Induction Motors by changing the frequency of input supply. These converters, on one hand are providing a more flexible speed control that also leads to problems of harmonics and their associated ailments like pulsating torque, distorted current and voltage waveforms, increasing losses etc. This paper includes the performance analysis of three phase induction motor with three phase AC direct and variable frequency drives (VFD) The comparison has been concluded with respect to various parameters. MATLAB SIMULINKTM is used for the analysis.