Applying a hybrid maximum power point tracking method which less affected from rapid environmental changes

PV power generation is one of the most important ways to use the sun's energy. Insolation and temperature in PV power systems affect the output of the system significantly. Between PV panel output voltage and current, there is a nonlinear relationship. This relationship demonstrates the importance maximum power point tracking (MPPT) for theory and practice for PV panels. I-V and P-V curve has only one of maximum power point (MPP) which entire PV systems operate at maximum efficiency and maximum power. MPP's location is unknown, but it found with computational models or sweep algorithms. MPPT is used to ensure that the work at the MPP of the PV panels. In this thesis; general information about the structure of the solar cell, solar tracking systems and the systems consisting of PV panels are given. Important MPPT methods and other methods which less found in the literature have been presented. Perturb and observe (P&O) method, incremental conductance method, dP/dV feedback control method, beta method and three point weight comparison method has been mentioned a lot in the literature. This methods and a hybrid MPPT method are simulated. In simulation of all methods, the measurement of the output voltage of the PV panels are not required. In other words, the output senseless is performed. Insolation intensity, temperature and voltage values which changed the time, is used as reference input value for a 280 W power PV panel model. The obtained simulation results, time to reach the MPP and oscillations which created at MPP compared by evaluating. Efficiency, stability and speed advantages provided by the method are presented. Key Words: Solar Energy, PV panel, Maximum Power Point Tracking, Perturb and Observed Method, Beta Method, Three Point Weight Comparison Method.