A new perturb and observe MPPT algorithm based on two steps variable voltage control

Based on the fact that effectiveness of perturb and observe algorithm in a maximum power point tracking (MPPT) photovoltaic array is tradeoff between speed during transient response oscillation around stable level steady state response. To have high speed, incremental step should be high, but this increases MPPT, whereas adopting low reduces time improve condition. This paper presents new based two variable control for MPPT applications. A proposed to gain merit guaranteeing fast process, also working condition through The proposal proved by analysis simulation results via MATLAB/Simulink software, comparison with conventional algorithm.