Design of a Mean Power Wind Conversion Chain with a Magnetic Speed Multiplier

Matt, D.; Jac, Julien; Ziegler, Nicolas

doi:10.5772/51949

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…This magnetic gear architecture shown in Fig.2 potentially offers a higher performance with a high torque density and a high reliability than mechanical gearboxes [6] and even more for high torque applications like in high wind turbine (of the order of a few MN.m and a few MW) with only magnetic part consideration [7]. However, no magneto-mechanical sizing has been done on this magnetic gear (with an approach similar than [8] for a wind turbine generator) and it seems to have weaknesses in terms of mechanical strength which are subjected to radial and tangential loads from the magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Supporting the Laminated Ferromagnetic Pole Pieces in a Magnetic Gear: A Structure Behaviour Analysis from a Multibody Model

Desvaux

Multon

Ahmed

et al. 2017

Multibody Mechatronic Systems

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This paper deals with the structure behaviour of a multi-bar system which maintains pole pieces in a magnetic gear. A simplified model of the system is proposed in order to be integrated in a multi-criteria global optimization for the sizing of a magnetic gear in wind power applications. For this purpose, the reduction of the computation time is taken into account. A geometry of the supporting bar is the defined and a Q bars structure is proposed. The study is based on a 1D model for each bar; variable radial and tangential magneto-mechanical pole pieces loads (generated by permanent magnets rings) are also considered. The resolution of the 6Q*6Q system permits to determine quickly the evolution of displacements for each bar. An example of a magnetic gear with 151 pole pieces (i.e. 3,9 MW wind turbine) is proposed.

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Section: Introductionmentioning

confidence: 99%

Supporting the Laminated Ferromagnetic Pole Pieces in a Magnetic Gear: A Structure Behaviour Analysis from a Multibody Model

Desvaux

Multon

Ahmed

et al. 2017

Multibody Mechatronic Systems

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“…We call it full magnetic indirect drive (FMID) [4]- [5]. The most attractive magnetic gears topology has been proposed by Martin [6] and was the subject of different studies proposed by Atallah [7]- [8] and others [9]- [10].…”

Section: Nomenclaturementioning

confidence: 99%

Gear ratio optimization of a full magnetic indirect drive chain for wind turbine applications

Desvaux

Multon

Ahmed

et al. 2017

2017 Twelfth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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International audienceThis article deals with the optimization of a full magnetic indirect drive (FMID) with magnetic gears which uses an analytical model based on subdomain resolution of Laplace's and Poisson's equations of the magnetic gear. A bi-objective analytical optimization is performed with a PSO algorithm with a minimization of the mass of the magnetic parts and a maximization of the gear ratio. This intermediate optimization is a step to optimize a 6MW FMID for a offshore wind turbine with one or two magnetic gears stages. It also compares FMID magnetic parts masses with a direct drive conversion chain with the same generator topology (hybrid excitation synchronous generator)

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“…For these designs, an attractive topology of magnetic gear has been proposed by Martin (1968) and used in different studies (Atallah et al, 2008;Atallah and Howe, 2001;Rasmussen et al, 2005;Wang et al, 2009). This concentric magnetic gear architecture shown in Figure 1 potentially offers a higher performance with a high torque density and a high reliability than mechanical gearboxes (Gouda et al, 2011) and even more for high-torque applications like offshore wind turbine (of the order of a few MN m and a few MW) with only magnetic part consideration (Matt et al, 2012). However, no magneto-mechanical sizing has been done on this magnetic gear (with an approach similar than (Zavvos et al, 2011) for a wind turbine generator) and it seems to have weaknesses in terms of mechanical strength since some parts are subjected to variable radial and tangential loads from the magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Magneto-mechanical analysis of magnetic gear pole pieces ring from analytical models for wind turbine applications

et al. 2018

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This article deals with the structural behavior of a multi-bar system which maintains pole pieces in a concentric magnetic gear. Simplified analytic magnetic and mechanical models of the system are proposed in order to be integrated in a multi-criteria global optimization for the sizing of a magnetic gear in wind power applications. For this purpose, the reduction of the computation time is taken into account. The geometry of the support bar subsystem is defined and a Q bar structure is proposed. The magnetic study is based on Maxwell's equations and subdomain method in order to determine variable radial and tangential magnetic loads. The mechanical study is based on a multibody model with different bars stiffnesses which are determined from a one-dimensional model. Variable radial and tangential magneto-mechanical pole pieces loads (magnetic load and weight) are also considered. An example of a magnetic gear with 172 pole pieces (i.e. 6-MW wind turbine) is proposed to analyze the mechanical behavior and also the computation time.

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Design of a Mean Power Wind Conversion Chain with a Magnetic Speed Multiplier

Cited by 7 publications

References 8 publications

Supporting the Laminated Ferromagnetic Pole Pieces in a Magnetic Gear: A Structure Behaviour Analysis from a Multibody Model

Supporting the Laminated Ferromagnetic Pole Pieces in a Magnetic Gear: A Structure Behaviour Analysis from a Multibody Model

Gear ratio optimization of a full magnetic indirect drive chain for wind turbine applications

Magneto-mechanical analysis of magnetic gear pole pieces ring from analytical models for wind turbine applications

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