Carrier shifting algorithm creating virtual frequency upsurge to reduce switching losses in multi-inverter fed induction motor drives
by Ranvir Kaur; Gursewak Singh Brar
International Journal of Energy Technology and Policy (IJETP), Vol. 15, No. 2/3, 2019

Abstract: Power electronics applications delve the induction motor drives posing a challenge for researchers to minimise the harmonic content thereby improving the power quality. In this paper, three level voltages are generated by cascading dual two-level voltage source inverters (VSI) with phase shift in their carrier waves. Phase shifted dual two-level inverter is used for total harmonic distortion (THD) reduction and shifting of side band harmonics. Multi inverters, they can be used for high mega volt-ampere ratings. The proposed dual inverter circuit arrangement is tested for 5-hp induction motor. The prototype is designed in MATLAB/simulink and is experimentally verified with TMS320F28377 DSP platform for wide range of speed control of induction motor.

Online publication date: Mon, 04-Mar-2019

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