Energy Storage Management of Maritime Grids

Generally, energy storage is the capture of energy produced at one time for use at a later time. Since these energy shifting or shaving abilities, energy storage can act as the role of generation or demand in different time-periods. This ability has shown great potentials to change the conventional operation pattern of power systems, i.e., the real-time power balance between the generation-side and demand-side. As a special type of power system, maritime grids are also applicable platforms for energy storage integration, such as in propulsion systems, or for energy recovery, and renewable energy integration. With the development of various energy storage technologies, energy storage will soon become indispensable equipment in maritime grids, and the energy storage management will become essential correspondingly. This Chapter focuses on the energy management of energy storage in maritime grids. At first, the energy storage technologies and their great effects on the power system operation are introduced. Secondly, the characteristics of different energy storage technologies are described. After that, the applications of energy storage in maritime grids are illustrated, (1) for the navigation uncertainties and demand response, and (2) for the renewable energy integration, and (3) for the energy recovery. At last, two practical problems are studied to show the energy management schemes of energy storage to address navigation uncertainties and to extend battery lifetime, respectively.