Optimization of Controller Parameters for Grid Photovoltaic System at Faulty Network Using Emperor Penguin Optimizer

Abstract

The Solar energy is one of the most important options for future generation of electric power. This article presents a novel application of the Emperor Penguin Optimizer (EPO) in order to optimally tune the PV controllers to enhance the low voltage ride through of grid-connected PV systems. The dynamic performance of the photovoltaic interface system can be indicated by the low voltage ride through (LVRT) enhancement in percentage undershoots or overshoots, settling time and voltage response steady-state error. A control strategy is applied to the DC-DC converter to obtain a maximum power point tracking operation through a proportional-integral (PI) -based open fractional voltage control. In the paper calculated the dynamic performances of the system, transient to enhance the voltage side inverter control voltage (VSC), and improvement the parameter of PV such as voltage at PCC, current, active power, reactive power and enhancing the Maximum Power Point Tracking (MPPT) of the pv system of rules to get optimum values obtained through method of optimization studied of grid fault conditions of PV system using MATLAB/SIMULINK Software. This paper explains the using the PI controllers of photovoltaic systems and comparison with old methods to get PI controller parameters that guarantee the optimum design of the controllers the fitness function is optimized by using the EPO.