Research on a direct-drive wave energy converter using Outer-PM linear tubular generator

An Outer-PM tubular linear generator has been designed to increase the power density and distance of relative movement. The design of the two buoys has been completed. Detailed design process of the proposed generator is described. Considering the cogging force and voltage, the linear generator has been optimized and final parameters have been determined. The integrated wave converter system has been manufactured and put into China's Yellow Sea based on the design results. The measured voltage is highly consistent with the simulation data. All the results show that the proposed generator is well suitable for wave energy conversion.