Эффективность гетероструктурных фотоэлектрических модулей на территории России и корректность методики выбора защитных аппаратов в их цепях

Abstract

The aim of this study was to estimate the efficiency of photovoltaic modules (PVM) used at solar power plants (SPP) in the Russian Federation territory and to analyze how adequate the procedure adopted for selecting protective devices in the PVM circuits is. In carrying out the study, a solar power plant analysis model developed in the PVSyst software environment using the SolarGIS weather database was used. The currently effective State Standard GOST R 56978-2016 (IEC/TS 62548: 2013): Photovoltaic Arrays. Specifications, which stipulates the procedure for selecting protective devices in the PVM circuits, is analyzed for sufficiency of the considered in it factors influencing the levels of currents in these circuits. Based on the modeling results, the values of the specific generated power were obtained, and the capacity utilization factor (CUF) values of SPPs were calculated for various regions of Russia. The data obtained can be used in performing the feasibility studies of constructing solar power plants in the Russian Federation territory, including those to be used for the consumers own needs. This data may also be needed in elaborating/updating the methodology for selecting protective devices in the PVM circuits. A conclusion can be drawn based on the obtained study results that the PVM operation features high efficiency in the Russian Federation territory. There is also a need to develop a procedure for selecting protective devices in the PVM circuits that would take into account the influence of insolation level, temperature and degradation of modules on the levels of short circuit currents in their circuits.