Power Electronic Controlled Magnetic Gear (PECMAG)


Stage 3

Project Lead

Oceaneering International

Project Sub-Contractors

Bathwick Electrical Design Ltd, Supply Design Ltd, Pure Marine Gen Ltd, University of Edinburgh, Applied Renewables Research

The PECMAG PTO system is a modular all-electric system with magnetic gearing that is being developed to suit a variety of WEC devices, offering both rotary and linear actuator systems. Medium scale prototypes of both the rotary and linear actuator PECMAG systems have been
manufactured and bench tested – with measurements confirming the high conversion efficiency performance figures expected from the contactless gear system.
The PECMAG prototypes have been developed with input from WEC developers, which has resulted in a thorough understanding and refinement of the PECMAG technology.

The testing and LCOE modelling undertaken in the Stage 2 project has identified areas where performance and manufacturability improvements can be realised.  The Stage 3 project extends the bench testing and refinement to include the bearings and assembly/manufacture processes for the gear system culminating in wet testing in real sea waves on a WEC test platform.