Simulation model of the photovoltaic system with a storage battery for a local object connected to a grid with multi-zone tariffication

摘要

The simulation of connected to the grid with multiple tariffs zones photovoltaic system of local object with storage battery is presented. The possibility of increasing the efficiency of the system using the “open” structure of the converter unit at management by the controllers of photovoltaic and storage battery from intelligent control system is shown. The simulation model for the analysis of energy processes in the system taking into account the load schedule of a local object and the possibilities of the generation control and redistribution of energy based on daily metcast data is developed. It is proposed for the estimation the power generated by the photovoltaic battery to use the dependence of solar radiation for a clear day, taking into account the hourly cloudiness coefficient based on statistical data. The possibility of creating a database for clear days during the year is shown. The analysis of possible energy redistribution algorithms is carried out taking into account the time of year and weather conditions in the normal mode of operation of the system, as well as in autonomous mode.