Cuckoo Search optimization algorithm for maximum power-point tracking of photo-voltaic systems

This paper presents a novel approach to determine the maximum power point (MPP) in Photovoltaic (PV) System using the Cuckoo Search (CS) algorithm. Microgrid at islanding mode is operated with renewable energy sources like Solar, Wind and non-renewable energy sources like Diesel generator and Battery which supply load to the system efficiently. With the change in load there is frequency deviation and controllers are required. Cuckoo search (CS) provides several advantages such as the process of tuning parameters is few with high efficiency beside fast convergence. Cuckoo search uses a random walk according to levy flight in searching process. MPPT by using cuckoo search is compared to other two methods, neural network method which needs training for data and the Perturb and Observe method. DC-DC converter is utilized with direct duty cycle control of PWM based controller.