Photovoltaic Array Output Model under Partial Shading Conditions with P-V and I-V Characteristics

This paper presents an output model for photovoltaic arrays operating under partial shading conditions, focusing on power-voltage (P-V) and current-voltage (I-V) characteristics. The implementation utilizes Simulink for dynamic simulation and performance analysis. Key features include a modular approach to model individual cell characteristics under non-uniform illumination, incorporating bypass diode functionality to handle shadowing effects. The model employs mathematical representations of solar cell physics using the single-diode equivalent circuit, with parameter optimization algorithms to accurately capture shading impacts. Through detailed simulation workflows and component configuration examples, we demonstrate the model's capability to analyze performance degradation patterns and power output variations under different shading scenarios. This implementation provides valuable insights for system design optimization and fault detection in practical photovoltaic applications.