Comparison of the Power Factor of SMPM and SM Vernier Outer Runner Machines for Traction Applications

Beitrag bei einer Tagung
(Konferenzbeitrag)


Details zur Publikation

Autor(en): Thyroff D, Hittinger C, Hahn I
Jahr der Veröffentlichung: 2018
Tagungsband: 2018 IEEE International Magnetics Conference (INTERMAG)
Seitenbereich: 1-4-4
Sprache: Englisch


Abstract

Low voltage traction applications demand high torques at low speeds and
at a small design space. In order to achieve high torque densities,
manufacturers often combine high-speed machines with mechanical
gearboxes. In the past decade, flux modulation machines came up,
offering low speeds and high torque densities by utilizing the magnetic
gearing effect. The idea is to remove the mechanical gear and get a
compact direct drive solution. Now, the Vernier machines are a subgroup
of the flux modulation machines. However, literature reports very poor
power factors for Vernier machines in comparison to PM machines as the
main drawback. Nevertheless, the presented studies always assume a fixed
speed and only one single current operating point. This is correct for
fixed speed applications, e.g. pumps and blowers, but it is not correct
for traction applications, because the machine cycles dynamically
through the torque-speed curve. Therefore, this paper first investigates
the machine design requirements considering the machine control
strategies and the needs of traction applications. Furthermore, a method
to check if the design fulfills the given requirements by calculating
only a single operating point is presented. In addition, the emerging
differences between Vernier and PM machines are explained using analytic
results. Furthermore, the paper presents a power factor comparison of
torque optimized Vernier and PM machines while considering iron losses.
Thereby, the comparison covers the whole torque-speed range, including
the field weakening area.


FAU-Autoren / FAU-Herausgeber

Hahn, Ingo Prof. Dr.-Ing.
Professur für Elektrische Antriebe und Maschinen
Hittinger, Christoph
Professur für Elektrische Antriebe und Maschinen
Thyroff, Dominik
Professur für Elektrische Antriebe und Maschinen


Zitierweisen

APA:
Thyroff, D., Hittinger, C., & Hahn, I. (2018). Comparison of the Power Factor of SMPM and SM Vernier Outer Runner Machines for Traction Applications. In 2018 IEEE International Magnetics Conference (INTERMAG) (pp. 1-4-4).

MLA:
Thyroff, Dominik, Christoph Hittinger, and Ingo Hahn. "Comparison of the Power Factor of SMPM and SM Vernier Outer Runner Machines for Traction Applications." Proceedings of the 2018 IEEE International Magnetics Conference (INTERMAG) 2018. 1-4-4.

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Zuletzt aktualisiert 2019-09-01 um 21:10