ABSTRACT

Hybrid energy storages are being pursued to enable tapping of the varied energy and power characteristics offered by diverse storage systems now available, for renewable applications. The battery-supercapacitor hybrid system provides an excellent opportunity to exploit the rapid charge/ discharge characteristics of supercapacitor with the advantage of extended charge retention offered by the battery storage. This chapter details the types of energy storages available and explores the possibilities of the need and benefits of employing hybrid storage systems. A brief review on architecture and applications of hybrid storage systems in renewable energy scenario is also included. A simple case study employing a batterysupercapacitor hybrid storage for smoothing of wind power generated by a 1.5 MW wind turbine is discussed and simulated results illustrated to prove the success of operating the hybrid storage system.