Mitigation of harmonic distortion using optimum phase-shift multiple parallel inverters

Abstract EN

It is clear that the harmonics in power systems have many negative impacts and therefore it is inevitable to reduce their amount to the accepted level and one of the interesting approach to reduce the harmonic distortion is to synchronize phase-shifted inverters operating in parallel.

in this paper, a relatively modern technique for harmonic reduction employing synchronized phase-shifted three parallel PWM inverters with current-sharing reactors is analyzed.

by using this method, the total harmonic distortion (THD) has been reduced significantly and the amount of reduction is directly proportional to the number of parallel phase-shifted inverters.