A Two Level Control Algorithm for the Maximum Power Point Tracking of Solar Photovoltaic System

Abstract: Battery charging process is non-linear, time-varying with a considerable time delay so it is difficult to achieve the best energy management performance by using traditional control approaches. To achieve the optimal charging and discharging status of the battery, a fuzzy control strategy is developed. The membership function database of the fuzzy sets, the fuzzification of the input and output variables and the evaluation of the fuzzy rules are used to support the control strategy. The Fuzzy Logic Algorithm used in battery charging process improves the efficiency of battery charging process and enhances the battery life. Keywords: Battery charge control, Dynamic modeling of battery, Conventional controller, Fuzzy Logic Controller