HESS energy configuration strategy based on load regulation for wind power

Abstract

Abstract Energy storage systems are particularly suitable for renewable energy sources, such as wind power, because these renewable energy sources are volatile. The hybrid energy storage system (HESS) considers the advantages of multiple energy storage systems and is considered very promising; therefore, the energy configuration strategy of an excellent HESS that considers both cost and performance is crucial. This article based on HESS consists of battery and supercapacitor (SC), additional consideration of user load; thus, by adjusting user translatable load and reducible load, the pressure of wind power and HESS can be alleviated to take into account the cost and performance of HESS. Further, a simple and easy-to-implement energy configuration strategy for HESS is proposed, which takes into account that the energy stored in the battery is almost the energy stored in the HESS and calculates the battery energy and then the SC energy through the gap between the load and the wind power. We used three sets of cases: without HESS, with HESS but without load control, and with HESS and load control. The results show that, compared with HESS without load control, HESS with load control can achieve lower HESS cost, wind abandonment rate, and load power shortage rate, which is impossible to combine with traditional strategies.