Modelling and analysis of thevenin and variable step size incremental conductance methods to improve the performance of pv system

Solar Power is the most consummate, accessible and productive renewable energy source. The widely used solar power converters are Photo Voltaic Systems and MPPT that plays a pivotal role in enhancing the efficiency of photo voltaic systems. This paper presents a set of standard MPPT methods namely perturb and observe (P&O) method, incremental conductance (IC) method and modified incremental conductance method along with two additionally proposed methods, viz. Thevenin method and variable step size IC method to improve the performance of PV system. These methods are modelled, simulated and subsequently studied in MATLAB software.