Performance of 10 kWp PV Rooftop System Based on Smart Grid in Energy Building PUSPIPTEK

Abstract

A 10 kWp capacity of the solar photovoltaic (PV) rooftop system with smart microgrid technology was installed on the top of Energy Building PUSPIPTEK. This system started to operate in December 2017. PV rooftop was integrated to grid electricity using on-grid inverter of SMA Sunny Tripower TL10000 with a capacity of 10250 W. This system is equipped by 2×5 kWh Li-ion battery with Hybrid Inverter Sunny Island SI3.0M, and supported by SCADA System and Weather Station. SCADA system uses Atvise SCADA software with some features, i.e. monitoring of smart microgrid component status, recording of energy production of PV system, integration with Smart-meter BPPT and weather station. Weather station system recording some weather parameters include humidity, air temperature, module temperature, solar radiation and wind speed. Solar PV system works on three conditions: normal conditions, grid fault conditions during the day and grid fault conditions at night. The system is also equipped with load shedding facilities. In this load shedding system, the load supplied by the battery can be adjusted in four loads categories based on battery capacity condition. This paper will describe the PV system energy production, the simulation of three condition of solar PV system and discuss about load shedding simulation. The system capable to produce 35 kWh average daily energy, minimum energy per day is 15 kWh and maximum energy per day is 55 kWh. The 10 kWp PV system works effectively for 3.5 hours in a day. Based on the simulation performed, the system can works well at three conditions and the load shedding scheme can operate according to the specified settings.