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Influence of Travelling Current Linkage Harmonics on Inductance Variation, Torque Ripple and Sensorless Capability of Tooth-Coil Permanent-Magnet Synchronous Machines
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
This paper introduces an important source of torque ripple in PMSMs with tooth-coil windings (TC-PMSMs). It is theoretically proven that saturation and cross-saturation phenomena caused by the non-synchronous harmonics of ...
Direct Liquid Cooling Method Verified With a Permanent-Magnet Traction Motor in a Bus
(IEEE, 2019-04-01)
Direct liquid cooling (DLC) of electrical machine windings is a clearly effectual cooling method for high-torque and high-power-density applications needed, especially, in heavy vehicles. Usually, in electric vehicles, the ...
Comparison of the Performance of Different Asynchronous Solid-Rotor Constructions in a Megawatt-Range High-Speed Induction Motor
(IEEE, 2019-08-05)
High-speed electrical machines have their advantages, such as higher power density than in traditional electrical machines, and disadvantages, such as very demanding and tailored design and manufacturing process. The ...
Inductance Calculation of Tooth-Coil Permanent-Magnet Synchronous Machines
(IEEE, 2014)
Analytical calculation methods for all the major components
of the synchronous inductance of tooth-coil permanentmagnet
synchronous machines are reevaluated in this paper.
The inductance estimation is different in the ...
Design of a Low-Power Direct-on-Line Synchronous Reluctance Motor Based on the Modified Natural Flux Line Curve Approach
(IEEE, 2021-09-01)
A direct-on-line synchronous reluctance motor (DOLSynRM) with a rotor topology defined by the natural flux line curve approach is studied as an alternative to an induction motor (IM) using a 1.5 kW, 50 Hz synchronous ...
Investigation of a Direct Liquid Cooling System in a Permanent Magnet Synchronous Machine
(IEEE, 2019-10-08)
A high demand for electrification of the transport sector has resulted in a need to provide compact and reliable electric power trains where the electric machine is a key element. The cooling system has a strong impact on ...
Unequal Teeth Widths for Torque Ripple Reduction in Permanent Magnet Synchronous Machines With Fractional-Slot Non-Overlapping Windings
(Institute of Electrical and Electronics Engineers, 2015)
Permanent magnet synchronous machines with
fractional-slot non-overlapping windings (FSPMSM), also known
as tooth-coil winding permanent magnet synchronous machines
(TCW PMSM), have been under intensive research during ...
Design and Analysis of a Self-Holding Three-Position Electric Tubular Actuator
(IEEE, 2020-08-07)
A self-holding three-position electric tubular actuator (SHTPETA) is described in the paper. The proposed linear actuator can be applied in a clutch system, where it is necessary to change certain mover positions over time. ...
Hysteresis loss in NdFeB Permanent Magnets in a Permanent-Magnet-Synchronous Machine
(IEEE, 2021-01-14)
Most permanent-magnet (PM) loss studies consider only eddy current loss and neglect hysteresis. In this paper, the hysteresis behavior of two NdFeB PM grades with different magnetic properties is assessed when applied in ...
Design and Manufacturing of a Modular Low-Voltage Multi-Megawatt High-Speed Solid-Rotor Induction Motor
(IEEE, 2021-05-26)
High-speed solid-rotor induction machines (HSIMs) are popular within high-speed applications because of their high rotor structural integrity and their fairly well-established manufacturing process guaranteeing high quality ...