Title of article :
Optimization of the Lyapunov Based Nonlinear Controller Parameters in a Single-Phase Grid-Connected Inverter
Author/Authors :
Hajbani, Vadood Department of Electrical Engineering - Ahar Branch Islamic Azad University , Salimi, Mahdi Department of Engineering - Ardabil Branch Islamic Azad University
Abstract :
In this paper, optimization of the backstepping controller parameters in a grid-connected singlephase inverter is studied using Imperialist competitive algorithm (ICA), Genetic Algorithm (GA) and Particle swarm optimization (PSO) algorithm. The controller is developed for the system based on state-space averaged model. By selection of a suitable Lyapunov function, stability of the proposed controller is proved in a wide range of operation. Considering different optimization algorithms, steady-state and dynamic responses of the developed system are studied. In addition, THD values for different test are compared. Finally, to verify accuracy of the proposed method, designed controller is simulated using MATLAB/Simulink software.
Keywords :
Grid-connected inverter , nonlinear controller , Imperialist competitive algorithm , ICA , Genetic Algorithm , Particle swarm optimization , GA , PSO , algorithm
Journal title :
Astroparticle Physics
