Data File-Development of Exact Explicit Models for Precise and Seamless Photovoltaic Emulator Operation: Processor-in-the-Loop Experimental Validation

This paper discusses the critical issue of incorporating photovoltaic solar models into solar photovoltaic emulators (PVE), a process that is essential for efficient simulating of PV system. As identified by the IEC EN 50530 standard, the most recent integration method based on explicit PV model (EPVM) experiences a loss of accuracy in the vicinity of the maximum power point (MPP) due to an oversimplification of the model equation. To address this issue, we establish two exact explicit models founded on the Lambert function. The first model referred to as the V-Lambert model is constructed using logarithmic approximations of the Lambert function and voltage measurements of the PV. It holds strong computational capabilities allowing for general evaluation of solar panels; however, operation constraints preclude its use for PVE integration. In order to achieve seamless integration into the PVE, an extension of the first model is undertaken to create the R-Lambert model. The efficacy of the established exact model is assessed across six distinct types of solar panels considering the types of monocrystalline, polycrystalline, and multicrystalline. According to the IEC EN 50530 evaluations, the main findings indicated that the V-Lambert model can be up to 61 times more accurate around ±10% of the MPP, than its EPVM counterpart. The R-Lambert model is employed to simulate various outcomes of a solar PV system, demonstrating its exceptional accuracy and dynamic capabilities. Ultimately, experimental substantiation executed on an embedded system via processor-in-the loop is utilized to ascertain the developed system's practical and real time suitability.