Abstract
This paper presents the comparison of performance between matrix converter and conventional DC-link converter fed induction motor drive system. It is noted that conventional converter required two stages for power conversion whereas matrix converter required single stage. The output current from conventional converter contains odd harmonic component which produces additional losses in drive causes de-rating and torque pulsation of motor. This unhealthy operation of drive is reduced by matrix converter which has the unique feature of producing pure sinusoidal output current waveform with minimum harmonic distortion. The main objective of this paper is to reduce total harmonic distortion by employing proper switching of matrix converter. The simulated result is compared with conventional converter to show that proposed system is better than conventional system. This paper also presents modeling and simulation of matrix and conventional converter fed induction motor drive system using MATLAB/SIMULINK software.
Highlights
Induction motor (IM) play a vital role in the industrial sector especially in the field of electrical drives and control
Another major drawback of odd harmonic contained in supply current produces torque pulsation of IM [7]
One of the limitations of matrix converter (MC) is complicated switching strategy which restricted to be used as modern converter for industrial application
Summary
Induction motor (IM) play a vital role in the industrial sector especially in the field of electrical drives and control. The main efforts which elaborates converter are usually directed to the increasing of converter efficiency and improving the quality of the output voltage by reducing the higher harmonics. The serious drawback of DC-link converter is output current contained higher order harmonic. Harmonic losses reduces efficiency and increase motor derating, which produces thermal over loading of IM even at light load condition [5]-[6]. Another major drawback of odd harmonic contained in supply current produces torque pulsation of IM [7]. The performance has been analyzed on the basis of torque pulsation and motor derating
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