A novel technique for photovoltaic maximum power pointtracking system

Abstract

Maximum power point tracking (MPPT),used in photovoltaic(PV) systems to maximize the photovoltaic array output power, irrespective of the temperature and irradiation conditions and of the load characteristics. In this paper a new MPPT system has been proposed consists of newly developed flyback type converter of a flyback transformer for high frequency linkage and synchronous switches for the connection to the AC utility grid and a maximum power point tracking (MPPT) controller without a current sensor. In this project the generated power of the PV array can be calculated by the equation using the voltage of PV array. The proposed PV power system which consists of two or more inverters, can get large power than the conventional one, when the PV array is partially shaded by some constructions.