Analysis of PM Machines with Sectored-Stator

Mostafa Ahmadi Darmani; Gerd Bramerdorfer; Silvio Vaschetto; Andrea Cavagnino; Stefano Carabelli

doi:10.1109/IEMDC.2019.8785205

Analysis of PM Machines with Sectored-Stator

Mostafa Ahmadi Darmani, Gerd Bramerdorfer, Silvio Vaschetto, Andrea Cavagnino, Stefano Carabelli

Institute of Electrical Drives and Power Electronics

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

This paper focuses on a new structure of permanent magnet machines suitable for highly integrated inwheel motors for vehicle application. In particular, the main feature of the integrated solution lays in the removal of a sector of the stator in order to have the required space for the brake caliper. However, the sectored-stator introduces an additional anisotropy in the electromagnetic circuit affecting the overall torque ripple of the machine. As a consequence, a general FEMbased analysis of sectored-stator PM machines has been undertaken to evaluate the important behaviors, such as output torque, cogging torque, torque ripple, back electromotive force, and unbalanced magnetic force. Furthermore, the effect of a considered winding arrangement has been evaluated using the winding function theory, obtaining interesting results related to the magneto-motive force distributions when a missing sector is present.

Original language	English
Title of host publication	IEMDC 2019, IEEE International Electric Machines & Drives Conference, San Diego, CA, USA
Pages	745–750
Number of pages	6
DOIs	https://doi.org/10.1109/IEMDC.2019.8785205
Publication status	Published - May 2019

Fields of science

202 Electrical Engineering, Electronics, Information Engineering
202009 Electrical drive engineering
202011 Electrical machines
202025 Power electronics
202027 Mechatronics

JKU Focus areas

Digital Transformation
Sustainable Development: Responsible Technologies and Management

Access to Document

10.1109/IEMDC.2019.8785205

Cite this

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title = "Analysis of PM Machines with Sectored-Stator",

abstract = "This paper focuses on a new structure of permanent magnet machines suitable for highly integrated inwheel motors for vehicle application. In particular, the main feature of the integrated solution lays in the removal of a sector of the stator in order to have the required space for the brake caliper. However, the sectored-stator introduces an additional anisotropy in the electromagnetic circuit affecting the overall torque ripple of the machine. As a consequence, a general FEMbased analysis of sectored-stator PM machines has been undertaken to evaluate the important behaviors, such as output torque, cogging torque, torque ripple, back electromotive force, and unbalanced magnetic force. Furthermore, the effect of a considered winding arrangement has been evaluated using the winding function theory, obtaining interesting results related to the magneto-motive force distributions when a missing sector is present.",

author = "Darmani, \{Mostafa Ahmadi\} and Gerd Bramerdorfer and Silvio Vaschetto and Andrea Cavagnino and Stefano Carabelli",

year = "2019",

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doi = "10.1109/IEMDC.2019.8785205",

language = "English",

pages = "745–750",

booktitle = "IEMDC 2019, IEEE International Electric Machines \& Drives Conference, San Diego, CA, USA",

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T1 - Analysis of PM Machines with Sectored-Stator

AU - Darmani, Mostafa Ahmadi

AU - Bramerdorfer, Gerd

AU - Vaschetto, Silvio

AU - Cavagnino, Andrea

AU - Carabelli, Stefano

PY - 2019/5

Y1 - 2019/5

N2 - This paper focuses on a new structure of permanent magnet machines suitable for highly integrated inwheel motors for vehicle application. In particular, the main feature of the integrated solution lays in the removal of a sector of the stator in order to have the required space for the brake caliper. However, the sectored-stator introduces an additional anisotropy in the electromagnetic circuit affecting the overall torque ripple of the machine. As a consequence, a general FEMbased analysis of sectored-stator PM machines has been undertaken to evaluate the important behaviors, such as output torque, cogging torque, torque ripple, back electromotive force, and unbalanced magnetic force. Furthermore, the effect of a considered winding arrangement has been evaluated using the winding function theory, obtaining interesting results related to the magneto-motive force distributions when a missing sector is present.

AB - This paper focuses on a new structure of permanent magnet machines suitable for highly integrated inwheel motors for vehicle application. In particular, the main feature of the integrated solution lays in the removal of a sector of the stator in order to have the required space for the brake caliper. However, the sectored-stator introduces an additional anisotropy in the electromagnetic circuit affecting the overall torque ripple of the machine. As a consequence, a general FEMbased analysis of sectored-stator PM machines has been undertaken to evaluate the important behaviors, such as output torque, cogging torque, torque ripple, back electromotive force, and unbalanced magnetic force. Furthermore, the effect of a considered winding arrangement has been evaluated using the winding function theory, obtaining interesting results related to the magneto-motive force distributions when a missing sector is present.

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DO - 10.1109/IEMDC.2019.8785205

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EP - 750

BT - IEMDC 2019, IEEE International Electric Machines & Drives Conference, San Diego, CA, USA

ER -