An Universal Model of Photovoltaic Arraywith the Function of MPPT in PSCAD

A simulation model about photovoltaic array which can track the maximum power point with the function of changing the it's resistances' structure is developed based on PSCAD. By the simulation of connecting the model with a associated electro circuit, we can draw the conclusion that the model can almost review the character of the actual device. Key worlds: photovoltaic array; MPPT; PSCAD; simulation