Harmonic Mitigation In Grid-Tied TPSPPS Via Novel PRESH Controller

The proposed paper deals with a new type of controller credited with a name of “Novel PRESH” helpful in mitigating the harmonic of Grid Tied TPSPPS (Grid-Tied Three Phase Solar Photovoltaic Power System) even during abnormal grid condition. Novel PRESH controller is formed by combining the characteristic of PRES and RESH Controller and its harmonic mitigation analysis is done with the help of both Bode-Plot and MATLAB Simulink. Presently, for eliminating the harmonic from Grid -Tied TPSPPS, various filters and controllers have already been proposed but it either resulted in increase of computational load or make the system bulky. Earlier technique develops in eliminating the harmonic face difficulty in eliminating the harmonic when the reference waveform get distorted from its original position. The proposed “Novel PRESH” controller can also be incorporated when grid suffers from any abnormal condition. The presented paper will also discuss the performance analysis of controller along with its design procedure that are helpful in mitigating the THD of three phase SPPS near to 1% and thus satisfying the IEEE standard 519 and 1547.