Analytical 3-D design of a Transverse Flux Machine with high power factor

Kremers, M.; Paulides, Jjh Johannes; Lomonova, E. A.

doi:10.1109/smart.2015.7399243

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…The magnetic charge method has been also applied in very few publications, such as [137]: at the moment, it is much less used for TFMs design than sizing equations and MEC. In this case, the magnetic field is calculated through the reduced scalar potential.…”

Section: Methodsmentioning

confidence: 99%

A Review of Transverse Flux Machines Topologies and Design

2021

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High torque and power density are unique merits of transverse flux machines (TFMs). TFMs are particularly suitable for use in direct-drive systems, that is, those power systems with no gearbox between the electric machine and the prime mover or load. Variable speed wind turbines and in-wheel traction seem to be great-potential applications for TFMs. Nevertheless, the cogging torque, efficiency, power factor and manufacturing of TFMs should still be improved. In this paper, a comprehensive review of TFMs topologies and design is made, dealing with TFM applications, topologies, operation, design and modeling.

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Section: Methodsmentioning

confidence: 99%

A Review of Transverse Flux Machines Topologies and Design

2021

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“…The reasons for the typically low power factor are not uniformly described. Many authors point to the high leakage flux of the structure as the main reason for the low power factor [78], [266], [310], [312]. For Instance, in [310] almost 80% of flux caused by the a Presumably used material armature current is identified as leakage.…”

Section: Reason For the Low Power Factormentioning

confidence: 99%

Transverse Flux Machine—A Review

Kaiser

Parspour

2022

IEEE Access

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For applications with high torque demand, gearboxes are commonly used to convert torque and speed in order to receive higher specific values for torque and power. This causes additional losses, cost, inaccuracies, effort, and noise. Eliminating the need of a mechanical gear and the associated disadvantages, Transverse Flux Machines with their high torque density are a very promising alternative. Despite a high torque density and a good efficiency, these types of machines are not commonly used. Due to the complex structure, challenges with mechanical design, and modeling of the machine behavior arise. Additionally, there are high requirements for the inverter due to the low power factor. This paper provides an overview of the state of the art including the potentials and advantages but also the problems and hindrances of these types of machines. Relating to linear and rotary machines from research and industry, the machine is introduced with its history, application and classification. Further, the general technical aspects, the influence of materials for flux guidance, the methods of modeling, methods for a minimization of torque ripples, as well as methods for power factor improvement are presented.

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“…Commonality occurs in the toroidal winding but this poses problems where leakage paths yield a low power factor [12]. Cogging torque is another issue, occurring due to the high pole numbers involved and their desire to align with the path of minimum reluctance.…”

Section: Introductionmentioning

confidence: 99%

Construction methods for modulated pole machines

Jordan

Baker

Washington

et al. 2017

2017 IEEE International Electric Machines and Drives Conference (IEMDC)

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The modulated pole machine (MPM) is known to offer high torque density utilizing permanent magnets and a three dimensional flux pattern. However, their construction requires a departure from conventional coil wound teeth formed of lamination stacks which can be a challenge. In this paper three construction techniques for MPM stators are compared: pure soft magnetic composite, pure lamination and a hybrid of the two. Simulation and practical knowledge of the build of each of these machines, including torque capability and mechanical tolerances is presented and discussed. Using the methods proposed here, it is shown that the pure laminate MPM machine has the potential to offer the greatest torque per kg of active material, yet it is the hybrid machine which delivers the highest absolute torque.

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Analytical 3-D design of a Transverse Flux Machine with high power factor

Cited by 6 publications

References 12 publications

A Review of Transverse Flux Machines Topologies and Design

A Review of Transverse Flux Machines Topologies and Design

Transverse Flux Machine—A Review

Construction methods for modulated pole machines

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