Design of New Linear Vernier Machine with Skew and Halbach Permanent Magnet for Wave Energy Converters

This paper introduces a new structure of linear permanent magnet Vernier machine, capable of producing high power even at low speeds of waves, which is highly suitable for wave energy converters. For this reason, Vernier machines are used in wave energy converters. In this paper, by adding the skew magnet on the stator in two different magnetic directions and permanent magnet with Halbach array on the translator, we have been able to improve the performance of the proposed machine compared to the prototype structure. This innovation has led to the increase of the main machine parameters including: induced voltage, power factor, trust force, PM flux, compared to the existing machine. All of these investigations were conducted under the same conditions using Finite element method.