PHOTOVOLTAIC MODULE ELECTRICAL MODELS SIMPLIFICATION FOR POWER GENERATION FORECASTING TASKS

• Дата: 2025
• Автор: Kuznietsov , M.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2025
• Теми: renewable energy sources; photovoltaic module; electrical model; forecast of electricity generation.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/533
• Назва журналу: Vidnovluvana energetika

The aim of the study is to analyze the possibilities of simplifying PV module models for power generation purposes, in particular, the method of selecting the values of unknown model parameters, as well as the exclusion of known parameters from the model. Since photovoltaic power plant is the object with a large number of individual photovoltaic modules, significant computing power is required to predict the operation of the plant using existing models. As the alternative solution is to use simplified models with the appropriate loss of accuracy of the modeling results. In this paper, it is proposed to use the annual electricity generation by a photovoltaic module as a criterion for model efficiency, evaluating the impact of each model simplification on the obtained result. The influence of some number of parameters of the most commonly used model, in particular, the semiconductor ideality coefficient, the equivalent parallel resistance, and temperature-related coefficients, is evaluated. As a conclusion, the expediency of choosing the ideality coefficient in a typical value, the insignificance of the temperature effect, and the moderate influence of the parallel equivalent resistance on the predicted annual electricity generation are given. Bibliography 12.