Abstract
Maximum power from PV system is tracked by using Maximum power point (MPP) tracking techniques. In this paper the Two fuzzy rules based perturb and observed (2F-P&O) with Fractional order based PI (FOPI) controller is developed to track the global MPP under Partial shading conditions (PSCs). The two rules based fuzzy systems are implemented to provide the voltage boundaries under which the P&O starts to track GMP. FOPI controller is used to minimize the error and gives an accurate response under PSCs. The performance analysis of 2F-P&O based MPP technique is showing along with cases as diagonal & column based shading patterns, irradiance change conditions under several PSCs. The 2F-P&O with FOPI based technique compared with traditional P&O, Artificial neural network and Particle swarm optimization, Moreover from the comparative analysis 2F-P&O has higher efficiency, less oscillations and convergence time. This paper is validated using Opal-RT simulator and MATLAB/ Simulink Software.
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