Capacity of Microgrid Energy Storage Systems Based on Quantitative Lifetime Modeling Optimization Study

In addition to lessening the influence and impact of the conventional power grid, microgrids can encourage the development and usage of renewable energy by acting as a buffer between them and renewable energy producing systems. This study studies the best way to allocate the capacity of energy storage systems for microgrids that use renewable energy sources. It also builds a hybrid energy storage system that combines batteries with supercapacitors. The analysis of the calculation example shows that it has a good smoothing effect on the output power fluctuation of renewable energy. During the charging and discharging operation, the charging status of both the battery and the supercapacitor is maintained within a tolerable range, which improves the hybrid energy storage system's ability to smooth out power fluctuations at the next moment.