Assessment of Axial Flux Motor Technology for Hybrid Powertrain Integration

Lampérth, Michael; Malloy, Adam C.; Młot, A.; Cordner, Mark J.

doi:10.3390/wevj7020187

Cited by 13 publications

(7 citation statements)

References 24 publications

(27 reference statements)

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“…The AF PMSM topology was described in detail in [27]. Figure 2a represents the shape of the motor disk, consisting of a single rotor sandwiched between two stators, where two sets of three phase windings are connected in parallel.…”

Section: Overview Of Motor Topology Assembly and Design Methodologymentioning

confidence: 99%

“…A three-phase PMSM, based on axial flux technology, that can be used in conjunction with custom-built or standard industrial inverters is shown in Figure 1a. Designed AFPMSMs combine high performance with reduced weight and size that are ideal for electric and hybrid electric vehicles [27][28][29]. These machines are characterized by the following key features: high torque and power density, low cogging torque, compact design with flat front and back faces for easy mounting, a through shaft, an integrated resolver for rotor position feedback; liquid cooling for enhanced performance.…”

Section: Experimental Measurementmentioning

confidence: 99%

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Performance Assessment of Axial-Flux Permanent Magnet Motors from a Manual Manufacturing Process

Młot

González²

2020

Energies

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Implementation of a new design for the process of assembling an axial-flux permanent magnet synchronous motor (AF PMSM) may lead to unstable motor parameters during operation at low and high speeds. In this paper, experimental data related to the AFPMSM used in an electric traction motor was monitored. The paper presents tracing of machine performance in order to find quality-related issues and to evaluate the assembly process. To assess the manual manufacturing process (low-volume production) and electrical machine performance, several motors, characterized by the same size and topology, were extensively tested. Useful AF PMSM parameters such as continuous torque and continuous current were measured. The winding temperature of the stators was also monitored and carefully examined. An attempt to assess motor performance, based on measurements and aimed at the identification of the weakest parts of the electric motor design is presented. In this paper it can be seen how the subcomponents of the machine and its detailed assembly process and tolerances play key roles in achievement of the designed continuous performance with symmetrical temperature distribution in the stator winding. Selected conclusions drawn from the obtained measurements were explained by a rotor/stator misalignment study using 3-D finite element analysis.

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Section: Overview Of Motor Topology Assembly and Design Methodologymentioning

confidence: 99%

Section: Experimental Measurementmentioning

confidence: 99%

Performance Assessment of Axial-Flux Permanent Magnet Motors from a Manual Manufacturing Process

Młot

González²

2020

Energies

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“…Performance investigation was carried out on a number of AFMs from a low volume production line. The following AFM characteristics represent extended investigation of AFM performance of the earlier author's study (Mlot et al, 2018;Lamperth et al, 2015;Malloy et al, 2014). The measured values of motor performance were carried out on test rig (Figure 4).…”

Section: Performance Investigationmentioning

confidence: 99%

“…In the past decade, the technology of axial flux motors with permanent magnets was rapidly developed, with many improvements in automotive applications (Li et al, 2013;Woolmer and McCulloch, 2007;Lamperth et al, 2015;Malloy et al, 2014). High performance motors are suitable for a range of markets and applications, where weight and space are critical for the end-user.…”

Section: Afm Used In Automotive Applicationmentioning

confidence: 99%

Analysis of axial flux motor performance for traction motor applications

Młot

Łukaniszyn

2019

COMPEL

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Purpose Analysis of test data monitored for a number of electric machines from the low volume production line can lead to useful conclusions. The purpose of this paper is to trace the machine performance to find quality-related issues and/or identify assembly process ones. In this paper, the monitoring of experimental data is related to the axial flux motor (AFM) used in hybrid electric vehicle (HEV) and in electric vehicle (EV) traction motors in the global automobile market. Design/methodology/approach Extensive data analyses raised questions like what could be the causes of possible performance deterioration of the AFM and how many electric motors may not pass requirements during operation tests. In small and medium research units of AFM for HEV or EV, engineers came across a number of serious issues that must be resolved. A number of issues can be eliminated by implementing methods for reducing the number of failing AFMs. For example, improving the motor assembly precision leads to reduction of the machine parameters deterioration. Findings Assembly tolerances on electric motor characteristics should be investigated during motor design. The presented measurements can be usable and can point out the weakest parts of the motor that can be a reason for the reduced efficiency and/or lifetime of the AFM. Additionally, the paper is addressed to electric motor engineers designing and/or investigating electric AFMs. Originality/value Performance of AFM was monitored for a number of identical motors from low volume production line. All tested motors were operated continuously for a long period of time and the tests were repeated every few weeks for half a year to check the reliability of motor design and indicate how much the motor parameters may change. The final results point how many motors fail the requirements of motor performance. A few batches of AFM were selected for testing. Each batch represents a different size (nominal power) of the same type of AFM.

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“…[1]- [3]. Thanks to these features, they have been successfully applied to industrial fields, for instance, electric vehicle traction motor, cooling fan, aircraft drive, and submarine drive [4]. It is worthy to point out that the magnetic structure of the AFPMM has a strong three-dimensional (3-D) effect, viz., the magnetic dimension along the radial direction is different at each radius, which brings challenges for the motor design.…”

Section: Green Open Access Added To Tu Delft Institutional Repositorymentioning

confidence: 99%

Nonlinear Semianalytical Model for Axial Flux Permanent-Magnet Machine

Guo

Khedda

et al. 2022

IEEE Trans. Ind. Electron.

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In this article, we propose a novel nonlinear semianalytical model (AM) for the magnetic field calculation of electric machines. The nonlinear properties and local saturation effect of the iron part are taken into consideration in Cartesian coordinates, which is the main contribution of the proposed model. Thus, high accuracy of electromagnetic field results can be obtained with the low computational time cost. The model is developed based on the harmonic modeling technique by solving Maxwell's equations. The detailed theoretical derivations, which use the complex Fourier series and the Cauchy product, are presented. To verify the proposed model, an axial flux permanent-magnet (PM) machine is selected to be investigated. Both finite-element model and experimental results agree well with that of the proposed model. Moreover, the nonlinear AM has potential application for other types of PM electrical motor in Cartesian coordinates, such as flat PM linear machines.

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Assessment of Axial Flux Motor Technology for Hybrid Powertrain Integration

Cited by 13 publications

References 24 publications

Performance Assessment of Axial-Flux Permanent Magnet Motors from a Manual Manufacturing Process

Performance Assessment of Axial-Flux Permanent Magnet Motors from a Manual Manufacturing Process

Analysis of axial flux motor performance for traction motor applications

Nonlinear Semianalytical Model for Axial Flux Permanent-Magnet Machine

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