Optimizing of hybrid renewable photovoltaic/wind turbine/super capacitor for improving self-sustainability
Qusay Hassan, Marek Jaszczur, Ali Khudhair Al‐Jiboory, Ali N. Hasan, A. A. Mohamad
Abstract
Abstract The study evaluate the utilization of an ultra supercapacitor as an energy storage unit effectively increase energy self-consumption in applications using microgrid renewable energy systems. Two scenarios were evaluated in this study: (scenario A) a photovoltaic and energy storage system; and (scenario B) a photovoltaic, energy storage, and wind turbine system. The systems analysis was conducted using experimental data for weather and load with a temporal precision of 1 min. The daily average of the electrical load profile was 5.0 kWh/day, with a maximum peak of 4.5 kW, and the annual energy consumption utilized to calculate the electrical load profile was 1859 kWh/year. The research indicates that charging the ultra supercapacitor only with renewable energy sources can greatly enhance self-consumption of energy. Using only six ultra supercapacitors (300 F–2.7 V/unit), the annual percentage of self-consumption increased from 37.01 to 46.65% and the percentage of self-sufficiency increased from 27.54 to 41.69% for scenario (A), and from 38.52 to 48.75% and the percentage of energy self-sufficiency increased from 33.50 to 49.87% for scenario (B). The research shows that by including tiny, rapid-response energy storage, the yearly averaged energy self-consumption for the investigated load rises in comparison to the system without energy storage, making it an attractive candidate for batteries.