Modeling, analysis and design of an undersea storage system

This paper presents the modeling, performance analysis, and design of an undersea storage system (USS). The USS can be employed for conditioning the output power of wave energy converters (WECs) and floating wind turbines (FWTs) at sea or ocean cites. A mathematical model is developed to describe the governing equations of the USS operation. Next, based on the developed model, a storage system is designed for a 3 MW direct drive WEC. Finally, some guidelines and discussions on determining the USS energy capacity, power capacity, optimum size, and installation depth are presented.