Abstract

This paper presents the design of a hybrid excited flux switching Vernier machine. This machine is designed to serve in renewable energy conversion applications, such as a wind turbine generator, or tidal turbine generator. After introducing this original structure, a design based on finite element models is conducted. The specifications correspond to relatively low power direct drive wind or tidal turbine applications. The rated power is set to 10 kW, with a rated speed of 300 rpm. Mainly the electromagnetic design is presented. Aspects related to the realization of a prototype are also presented, and an experimental study is included.

Highlights

  • Problems linked to the use of fossil fuels are pushing our societies to find viable and sustainable alternatives for their replacement

  • The structure studied in this research includes damper windings used for the mitigation of voltage induced in the wound field excitation windings [10,11,12,13,14]. This structure can be used as a generator in low-speed applications such as direct drive wind turbines or tidal turbines

  • The use of double excitation reduces the need for high-performance structure is based. These are specifications used at GREAH laboratory as a reference rare magnets, the extraction of which is extremely allowing better for earth comparing several prototypes

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Summary

Introduction

Problems linked to the use of fossil fuels are pushing our societies to find viable and sustainable alternatives for their replacement. Radioactive wastes, the products of nuclear power plants, have a lifespan that exceeds several generations, the management of which is problematic In this context, renewable energies constitute a viable and lasting solution, since their potential is enormous, and they do not emit greenhouse gases. The structure studied in this research includes damper windings used for the mitigation of voltage induced in the wound field excitation windings [10,11,12,13,14] This structure can be used as a generator (alternator) in low-speed applications such as direct drive wind turbines or tidal turbines. Flux-switching machines have structures where all the sources of magnetic fields can be placed in a fixed part This allows efficient cooling, and better performance stability.

Design of Studied
Structure and Electromagnetic
Armature
The currentThe density
Cogging
15. Phase current of a of given phase:
It distributed in theOperation areas near the permanent magnets in the
Prototype
19. Stator
21. Production
25. Measured
26. Comparison
Findings
Conclusions

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