Parameter Optimization of Bidirectional Three-Phase DC-AC Power Inverter by an Improved Particle Swarm Optimization based Fractional Order PI Controller for the Grid Forming Operation

Year 2023, Volume: 8 Issue: 1, 25 - 30, 21.10.2022

Mehmed Çelebi , Abdullah Başçi

https://doi.org/10.19072/ijet.994277

Abstract

Nowadays, it is becoming more remarkable for bidirectional power conversion from battery energy sources. These structures can be used for three-phase loads and they also have a common application in Micro-grid systems. This paper is mainly focused on parameter optimization of the system by using improved particle swarm optimization (PSO) in grid forming operation of dual active bridge series resonant converter (DABSRC) topology, in term of total harmonic distortion (THD). Fractional order proportional integral (FOPI) controller is used to simulate DABSRC regarding to THD factor in this system. The results are also compared to genetic algorithm (GA) and conventional PSO. While all algorithms achieved the same optimum control parameters, a significant reduction of computation time has been reported by improved PSO in terms of THD.

Keywords

THD, Optimization, PSO, Fractional order control

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