Generator requirements and functionality for ocean energy converters

The development of wave and tidal energy power generation technology is moving steadily towards pre-commercial status. The multitude of widely differing power capture technologies means that it is a difficult industry to analyse in terms of a common approach to optimal generator selection or design. This paper examines some of the overarching requirements that will pertain to all device developers in terms of generator technology. It then examines some of the requirements imposed by the individual device technologies and the sometimes widely differing functionality of the generator operation and control in each case. In conclusion, this study will assist in identifying the design drivers for off the shelf (OTS) machine selection or indeed custom machine design in ocean wave and tidal devices.