Investigation of the electrical system design concept and grid connection of ocean energy devices to an offshore compressed energy storage system

One of the biggest challenges of ocean wave and wind energy systems is the mitigation of the intermittency effects, in order to allow for their integration into the electric grid. Energy extraction using an ocean based compressed air energy storage system (OCAES) is proposed to enhance the economic dispatch of these energy sources onto the grid. There are land based compressed air energy systems storage systems. The ocean based version is a relatively new concept that is not proven and has not been studied in detail, yet it has significant advantages over the land based systems. The focus of the paper is on the power transmission and grid control utilizing the OCAES. System design concepts are discussed and simulation results are provided.