Influence of Load Peak Shaving on Battery System Capacity in an Islanded Building Microgrid

In this paper, building microgrid is modelled in the hardware in loop software Typhoon HIL. Microgrid consists of 30 kW wind turbine, 70 kWp photovoltaic system, building load and battery system. Energy management system is integrated into software model and simulations of the influence of the active load peak shaving technique on battery system capacity are conducted. In each case daily active power load peak is reduced by 1 % and battery system capacity is calculated. Every simulation is executed for the period of one week. Results show that battery system capacity is reducing with active power load peak shaving increase but not in a linear way like it is expected because of the properties of the microgrid model.