GWO-based direct power control with improved LCL filter design for three-phase inverters
by Mohamed Amine Djema; Mohamed Boudour; Kodjo Agbossou; Alben Cardenas; Mamadou Lamine Doumbia
International Journal of Digital Signals and Smart Systems (IJDSSS), Vol. 5, No. 1, 2021

Abstract: This paper presents a direct power control (DPC) technique based on instantaneous power theory with optimised PI controllers using a grey wolf optimiser (GWO) algorithm. The method allows to control active and reactive power and to improve the generated power quality. Double second-order generalised integrator with frequency-locked loop (DSOGI-FLL) is performed to ensure the grid synchronisation. New objective functions were defined and the optimisation process is carried using the grey wolf optimiser. A three-phase inverter based grid-connected system was investigated for the simulation. The superiority of the new method was proven by analysing of the different operating modes and conducting a comparative study.

Online publication date: Wed, 03-Feb-2021

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