摘要：AbstractThis paper addresses a modeling and nonlinear control of photovoltaic systems which includes photovoltaic panels, a half bridge inverter with capacitive divider and an LCL filter connected to single-phase grid. We seek the achievement of three control objectives: i) ensure that the PV panels generate its maximum power ii) regulating the DC link voltage to track its reference provided by MPPT block, iii) achieve a satisfactory power factor correction (PFC) with respect to the power supply net. To meet these objectives a multi-loop controller is designed based on nonlinear approach applied to the 5th order nonlinear model. The simulation results have been performed through MATLAB/SimPowerSystems environment and show that the designed controller meets its objectives.
关键词：KeywordsPV systemNonlinear controlMPPTPFCBackstepping approachGrid connected system
