Simulation Study Of Photovoltaic Array MPPT Based On Improved CS Algorithm

For the photovoltaic array failure in the harsh environment or in the shadow state for a long time the output power decline. This paper proposes an improved CS(Cuckoo Search) algorithm for maximum power point tracking(MPPT). In the improvement of the algorithm, the adaptive step size factor is added into the voltage equation to improve the global optimization ability and local optimization accuracy. At the same time, a simulation model is built based on Matlab/Simulink platform, and the improved CS algorithm is compared with the traditional PSO algorithm and the pre-CS algorithm. The results show that the improved CS algorithm shows relatively fast tracking performance and effectiveness under the shadow condition.