A Novel Dual Magnetically Geared Halbach Array-Based Tubular Linear Permanent Magnet Generator for Wave Energy Conversion

This article presents a novel dual magnetically geared Halbach array-based tubular linear permanent magnet generator (DMG-TLPMG) for a direct-drive wave energy converter (DD-WEC). The proposed generator integrates two tubular linear permanent magnet generators (TLPMGs) and two tubular linear magnetic gear machines (TLMGM) into a single machine, thereby maximizing power generation from a single stroke of the translator. This article gives the constructional details, working principle, and design equations of the proposed generator. Further, the performance of the generator is analyzed using 2-D and 3-D finite element analysis (FEA). The FE results show that the proposed generator exhibits high output voltage, power, and force densities.