Multiphase tubular permanent magnet linear generator for wave energy converters

Abstract

In this paper, an investigation into different magnetisation topologies for a Long Stator Tubular Permanent Magnet Linear Generator (LS-PMLG) is performed through a comparison based on the cogging force disturbance, the power output and the cost of the raw materials of the machines. The results obtained from the FEA simulation are compared with an existing linear generator described in [1]. To ensure accurate results, the generator developed in [1] is built with 3D CAD and simulated using Finite Element Method (FEM) and the obtained results are verified with the source.

Separated magnet yoke for permanent magnet linear generator for marine wave energy converters

“…Direct drive PMLGs have been proposed for WECs and several design solutions have been outlined in [4][5][6][7][8][9][10][11][12]. In [4] flat air-cored design has been suggested.…”

Investigation of Multi-phase Tubular Permanent Magnet Linear Generator for Wave Energy Converters

“…Number of concepts for direct drive WEC has been presented [4][5][6][7][8][9][10][11][12][13][14][15]. Caused by the relatively low vertical speeds of the marine waves and the desire for high output power, the generators share large sizes and hence, high magnetic forces such as cogging forces.…”