Steady state and dynamic analysis for MPPT techniques

This paper presents the analysis of six maximum power point tracking techniques: constant voltage, temperature gradient, open-circuit voltage, short-circuit current, perturb and observe, and incremental conductance. The efficiency of these techniques are compared in steady state condition, when irradiance and temperature are kept constant. Their dynamic behavior is also considered, with the variation of irradiance and temperature levels. The system was modeled at Simulink®, and the simulation results showed that some methods have high efficiency in steady state condition, but poor performance with temperature and irradiance variations. Finally, an experimental setup with the constant voltage and temperature gradient methods were built. The results highlighted the influence of temperature in the maximum power point.