Maximum Power Point Tracking of Photovoltaic System Using Two Input and Two Output Fuzzy System

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.