Improved method of tracking the maximum power point for photovoltaic system

On the basis of analyzing the principle of perturb and observe algorithm and incremental conductance algorithm which are the traditional algorithm of the maximum power point tracking, a new MPPT algorithm based on bee evolution modifying particle swarm optimization (BEMPSO) combined with perturbation and observation or incremental conductance control is proposed. Simulation of the algorithm based on Matlab is carried out. Experimental results show that the two methods is a successful and feasible approach to achieve the maximum power point tracking under bad conditions.