MPPT Controller: The Maximum Power Point Tracking (MPPT) controller is based on the 'Perturb and Observe' technique. The control system contains five major Simulink®-based subsystems: The topology of the grid-side filter is the classical LCL configuration with the inductors split equally between the line and the neutral branches. The inverter is modeled using a PWM-controlled single-phase full-bridge IGBT module ( H-bridge). Two small capacitors, connected on the + and - terminals of the PV array, are used to model the parasitic capacitance between the PV modules and the ground. C and with a solar irradiance of 1000 W/m2, the string can produce 3500 W. In our example, the PV array consists of one string of 14 Trina Solar TSM-250 modules connected in series. The PV array block has two inputs that allow you to supply varying sun irradiance (input Ir in W/m^2) and temperature (input T in deg. 2014) as well as a user-defined PV module. It allows modeling a variety of preset PV modules available from NREL System Advisor Model (Jan. The SPS PV array model implements a PV array built of series- and parallel-connected PV modules.
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