Direct power control modeling with optimized LCL filter for grid integrated renewables

The increasing presence of green energy on grid needs using of high control strategy and good power quality. For that reason this paper presents analysis and control of three phase space vector pulse width modulated (SVPWM) two level voltage source inverters (VSI) with constant switching frequency using a direct power control (DPC). In order to improve the power quality by reducing harmonic distortion, a design of LCL filter by genetic algorithm (GA) and particle swarm optimization (PSO) is also described. Comparative studies between these two methods are discussed to show the most efficient one in terms of generation and harmonics injected to the grid.