Modelling for Classifying Different Shadow of Obstacles on a c-Si PV Panel

Abstract

Shadow of Obstacles (SoO) on a PV Panel is classified depending on time with changing pattern of the shadow. Due to obstacles, the performance of a silicon c-Si PV panel reduces by a significant level. Different types of obstacles cast shadow on the panel and interrupt to get irradiation reducing the generated power. The simulation model is implemented in MATLAB/Simulink to observe the changing pattern and variation of output power with changing shadow pattern of the obstacles. The results show identical behaviors. It is clearly viewed in both PV generated I-V and P-V curves. Their pattern of graphs is changed depending on the time for time-dependent obstacles. Graphs pattern is also changed with depending on timeindependent obstacles and that does not vary with time. The identification of the behavior of the obstacle is vital to improve the PV system performance. For time-dependent obstacles and for time independent obstacles power decreases in specific quantity depending on the kind of SoO. Specifically, for the timedepending one is also depend on the duration of the SoO.