O-DriveTM
The O-DriveTM 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-DriveTM 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 bioWAVETM would be designed to utilise four 250kW O-DriveTM modules, each individually removable, allowing for maximum flexibility and reliability.
Features
O-DriveTM Function
The O-DriveTM converts the high-force oscillations contained in ocean energy sources into regulated high-voltage AC power. View the animation for a demonstration.
Convenient Retrieval for Servicing
Each O-DriveTM module is detachable and designed to be conveniently retrieved for servicing. View the animation for a demonstration of this process.
On-grid Testing
Two full-scale 250kW O-DriveTM systems have been built at the BioPower Systems Test Centre where they are currently being tested under simulated ocean conditions. Watch the video to see recent footage of the systems, arranged in a back-to-back configuration, where one module is back-driven to apply forces onto the other such that the receiving side experiences ocean-like conditions.
