This paper presents a new intelligent method to track the maximum power point of a photovoltaic system under variable irradiance and temperature conditions using Fuzzy control logic. The system mainly consists of a photovoltaic panel, boost converter and fuzzy controller. The fuzzy control used in the system uses a rate of change of power (error) and change in error as the inputs to get the optimum reference voltage and optimum duty cycle to track the maximum operating point. This method assures fast tracking of a maximum power point with a high accuracy and the results is verified by using simulation.Keywords MPPT Á Two input two output fuzzy controller Á Photovoltaic panel
IntroductionEnergy is the main concern of the modern life. As the fossil fuels are extinguishing rapidly from the earth, the demand of renewable energy is increasing day by day. The most effective among all renewable energy is the solar energy. Solar energy can be produced by using Photovoltaic panel but the major concern is the efficiency of producing the solar energy. Hence to overcome this problem and to get the maximum possible efficiency, the design of all the elements of the PV system has to be optimized.
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