O-DriveTM

The O-Drive^TM is a self-contained 250kW power conversion module for use in wave and tidal energy systems. It is designed to be detachable and retrievable, enabling convenient and low-cost maintenance.

The O-Drive^TM was developed by BioPower Systems. It is based on the conversion of mechanical energy from an oscillating source to electricity using a hydraulic system coupled to a full AC-DC-AC power conversion system. Within each 250kW module, two hydraulic cylinders deliver high pressure fluid to a bank of accumulators which in turn supply a uniform flow to a hydraulic motor that is directly coupled to an electric generator. The system is self-regulating in variable wave or tidal conditions, such that power to the grid is stable and of utility-grade quality.

The 250kW rating is standard. A 1MW bioWAVE^TM would be designed to utilise four 250kW O-Drive^TM modules, each individually removable, allowing for maximum flexibility and reliability.