摘要:AbstractThis paper addressed the problem of controlling a three-phase grid connected photovoltaic system. The considered problem is dealt with using a new strategy controller. PI Controller is used for regulation the current of the inverter to obtain satisfied quality of the grid characteristic waveform. Moreover, the backstepping technique is used for controlling the duty cycle of the boost converter taking into consideration the environmental conditions scenarios. A regression plane is generated to provide the reference voltage to track MPP. To achieve the above controller objectives, a configuration model of both controllers is elaborated. Finally, the simulation results are presented using Matlab Simulink.