Electromagnetic and Mechanical Design of a Hermetically Sealed Magnetic Gear for a Marine Hydrokinetic Generator

Baninajar, Hossein; Bird, Jonathan Z.; Modaresahmadi, Sina

doi:10.1109/ecce.2018.8557386

Cited by 14 publications

(5 citation statements)

References 10 publications

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“…The Coaxial Magnetic Gearbox (CMG) consists of an outer rotor, a modulation ring and an inner rotor, all concentric, offer many advantages and is one of the types of MGs with the most papers about it. According to [19] the torque density of CMG is higher than that of AMG. Since the flux is radially distributed in an even air gap, the attraction forces on the inner rotor are mostly evenly distributed along its circumference.…”

Section: Coaxial Magnetic Gearboxmentioning

confidence: 99%

“…The use of MGs in the naval industry was proposed in [18][19] as a way to reduce the size of the propulsion system when compared to a conventional system with the drive system connected to the propeller. It also makes use of the modulation ring as a wall to isolate the propeller from the drive system.…”

Section: Figure 8 -Magnetic Planetary Gearboxmentioning

confidence: 99%

“…The use of Magnetic Gearboxes (MGs) as a way to transfer energy to controlled environments has been proposed in papers such as in [23] for clean rooms or explosive, corrosive and contaminating environments and in naval applications to separate the drive system from the propeller [18][19]. If energy is to be transferred with a physical connection, the isolation would become difficult and the friction between the VCW and the shaft that would connect both sides of the wall would be enormous, especially considering high speeds.…”

Section: Modulation Ring As Part Of the Vacuum Chamber Wallmentioning

confidence: 99%

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Study of a reluctance magnetic gearbox for energy storage system application

Dias¹

2022

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This work proposes the use of a magnetic gearbox to be applied on an energy storage system based on flywheel to allow the use of a conventional electric machine external to the vacuum chamber as the primary machine, maintaining the possibility of using a rotating mass with high speeds. Parametric simulations were performed using finite element software to determine the behaviour of the various variables of the magnetic gear in terms of its performance and design constraints. Finally, a prototype was built to validate the simulations and the considerations made.

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Section: Coaxial Magnetic Gearboxmentioning

confidence: 99%

Section: Figure 8 -Magnetic Planetary Gearboxmentioning

confidence: 99%

Section: Modulation Ring As Part Of the Vacuum Chamber Wallmentioning

confidence: 99%

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Study of a reluctance magnetic gearbox for energy storage system application

Dias¹

2022

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“…Linear PM generators for application in Archimedes Wave Swing (AWS) were explored in [35]- [37]. An approach to design a hermetically sealed MG was evaluated in [38], whereas the use of large-scale inner stator radial flux MGM was brought into consideration in [39]. In [40], Uppalapati et al examined the performance of ferrite magnets in MG for low speed marine power generation.…”

Section: Introductionmentioning

confidence: 99%

Axial-Flux PM Disk Generator With Magnetic Gear for Oceanic Wave Energy Harvesting

et al. 2019

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Magnetic gears (MGs) offer many advantages over mechanical ones due to their contactless mechanism of torque transfer. With the flourish of this new avenue of research, a new breed of MGs has been designed that are well suited to execute high-torque direct-drive operations. This paper investigates the performance characteristic of a disk generator located on the same shaft with an MG for oceanic wave energy harvesting application. The permanent magnets (PMs) of both the generator and the MG are arranged in a special manner to boost the overall performance of the system. To verify the validity of the proposed model, simulations of the magnetic disk gears are performed using Maxwell version 16. The calculation of the magnetic field, and the characteristics of the generator is made using Infolytica Magnet software package. Furthermore, the prototype sample of the generator with the magnetic gear is fabricated and tested in the laboratory, which further substantiates our claim.INDEX TERMS Generator, magnetic gear, oceanic wave energy, permanent magnet, wave energy harvesting, torque density.

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“…In [48] and [49] the 1 st and 2 nd stage of an CMG for a Marine Hydrokinetic Generator (MHG) are presented. The magnetic gearbox is designed for 5 kW input at 40 rpm, and the 2-stage design is chosen to obtain a total gearing ratio of 1:63.3, hence quite high compared to other single stage CMG that have been demonstrated.…”

Section: Applications For Magnetic Gearsmentioning

confidence: 99%

Compact, Efficient and Flexible Drive Unit with Wide Operating Area for Conveyors

Nielsen

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Electromagnetic and Mechanical Design of a Hermetically Sealed Magnetic Gear for a Marine Hydrokinetic Generator

Cited by 14 publications

References 10 publications

Study of a reluctance magnetic gearbox for energy storage system application

Study of a reluctance magnetic gearbox for energy storage system application

Axial-Flux PM Disk Generator With Magnetic Gear for Oceanic Wave Energy Harvesting

Compact, Efficient and Flexible Drive Unit with Wide Operating Area for Conveyors

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