International Journal of Advanced Science and Engineering Research
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e-ISSN 2455-9288
alameenpublications@gmail.com
e-ISSN 2455-9288
ijaser
IJASER publishes high-quality, original research papers, brief reports, and critical reviews in all theoretical, technological, and interdisciplinary studies that make up the fields of advanced science and engineering and its applications.
Variable speed AC drives are finding their place in all types of industrial and commercial loads. This Work covers the current source converter technologies, including pulse width-modulated currentsource inverters (CSIs) and in addition, this also addresses the present status of the direct converters & gives an overview of the commonly Used modulation schemes for VFD systems. The proposed work flow is that to work with the simulation of three phases PWM Current Source Inverter fed Induction Motor (CSIIM) drive systems using Matlab/Simulink simulation Software. This work primarily presents a Unified approach for generating pulse width-modulated patterns for three-phase current-source rectifiers and inverters (CSR/is) that provides unconstrained selective harmonic elimination and fundamental current control. This conversion Process generates harmonics in the motor current waveform. This project deals with the analysis of motor current Harmonics using FFT analysis and use of filter for mitigating them for smooth operation of motor. The filter used for Reduction of harmonics is passive filter. The filter is such it reduces only the 5th & 7th order harmonics. Thus the Analysis of motor current harmonics is done firstly without filter & then it has been compared with the results after the Addition of filter. It is found that the 5th & 7th
order harmonics has reduced considerably.