A Maximum Power Criterion of MPPT and its Application

A novel MPPT control strategy with only sampling the port voltage of the solar cell is presented in this paper. The principle of the MPPT system is analyzed and the criterion to reach the maximum power point is deduced. Based on the obtained criterion, a novel algorithm realizing MPPT is proposed. The feasibility of the proposed control strategy and the correctness of the theoretical analysis are verified by the experimental results.