Development Of PV Emulator For Partial Shading Condition With Processor-In-The-Loop Simulation Utilizing Real-Time Microcontoller

This paper presents a new approach and development of a PV emulator capable of accurately emulating the output characteristics of a PV module under partial shading conditions. The use of the MATLAB Simulink platform, coupled with the integration of a DC-DC buck converter and PI controller, enables reliable and accurate emulation of the behaviour of PV module under partial shading condition. The resulting power-voltage curve exhibits three distinct peaks, closely matching the characteristics of a real PV module, with mean absolute (MAPE) error percentage of only 0.167%. The inclusion of Processor-in-the-Loop (PIL) simulation further enhances the accuracy of the PV emulator, resulting in an even lower MAPE of 0.142%. Overall, the proposed PV emulator demonstrates robustness with settling time as low as 3ms at the peak power operating point and effectiveness in dynamic load conditions, highlighting its potential for practical applications.