A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines

Damien Lawhorn; Narges Taran; Vandana Rallabandi; Dan M. Ionel

doi:10.1109/ITEC.2018.8450184

A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines

Damien Lawhorn, Narges Taran, Vandana Rallabandi, Dan M. Ionel

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

7 Scopus citations

Abstract

In traditional electric machines, it is usually possible to achieve constant power high-speed operation by employing field weakening through the injection of a negative d-axis current component. However, in machines with low armature inductance, such as high power density permanent magnet synchronous machines, and more specifically, coreless machines, which are gaining increasing attention because of their high specific torque, the extended speed range obtained using this method is very narrow. This paper summarizes the performance characteristics of existing approaches for obtaining constant power operation and proposes two new techniques, specially applicable to coreless axial flux permanent magnet machine namely, current weakening and relative winding rotation.

Original language	English
Title of host publication	2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018
Pages	821-826
Number of pages	6
DOIs	https://doi.org/10.1109/ITEC.2018.8450184
State	Published - Aug 28 2018
Event	2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018 - Long Beach, United States Duration: Jun 13 2018 → Jun 15 2018

Publication series

Name	2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018

Conference

Conference	2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018
Country/Territory	United States
City	Long Beach
Period	6/13/18 → 6/15/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Funding

ACKNOWLEDGMENT The authors are thankful to Greg Heins and Chris Heintz for their suggestions and technical contributions. The support of the NASA Kentucky Space Grant Consortium, University of Kentucky, the L. Stanley Pigman endowment, and ANSYS, Inc. is gratefully acknowledged.

Funders	Funder number
ANSYS, Inc.
Kentucky Space Grant Consortium
University of Kentucky

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering
Transportation

Access to Document

10.1109/ITEC.2018.8450184

Cite this

Lawhorn, D., Taran, N., Rallabandi, V., & Ionel, D. M. (2018). A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines. In 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018 (pp. 821-826). Article 8450184 (2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018). https://doi.org/10.1109/ITEC.2018.8450184

@inproceedings{f9f4b7e82d984cf5b452e408f20b9510,

title = "A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines",

abstract = "In traditional electric machines, it is usually possible to achieve constant power high-speed operation by employing field weakening through the injection of a negative d-axis current component. However, in machines with low armature inductance, such as high power density permanent magnet synchronous machines, and more specifically, coreless machines, which are gaining increasing attention because of their high specific torque, the extended speed range obtained using this method is very narrow. This paper summarizes the performance characteristics of existing approaches for obtaining constant power operation and proposes two new techniques, specially applicable to coreless axial flux permanent magnet machine namely, current weakening and relative winding rotation.",

author = "Damien Lawhorn and Narges Taran and Vandana Rallabandi and Ionel, {Dan M.}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018 ; Conference date: 13-06-2018 Through 15-06-2018",

year = "2018",

month = aug,

day = "28",

doi = "10.1109/ITEC.2018.8450184",

language = "English",

isbn = "9781538630488",

series = "2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018",

pages = "821--826",

booktitle = "2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018",

}

Lawhorn, D, Taran, N, Rallabandi, V & Ionel, DM 2018, A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines. in 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018., 8450184, 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018, pp. 821-826, 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018, Long Beach, United States, 6/13/18. https://doi.org/10.1109/ITEC.2018.8450184

A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines. / Lawhorn, Damien; Taran, Narges; Rallabandi, Vandana et al.
2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018. 2018. p. 821-826 8450184 (2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018).

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

TY - GEN

T1 - A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines

AU - Lawhorn, Damien

AU - Taran, Narges

AU - Rallabandi, Vandana

AU - Ionel, Dan M.

PY - 2018/8/28

Y1 - 2018/8/28

N2 - In traditional electric machines, it is usually possible to achieve constant power high-speed operation by employing field weakening through the injection of a negative d-axis current component. However, in machines with low armature inductance, such as high power density permanent magnet synchronous machines, and more specifically, coreless machines, which are gaining increasing attention because of their high specific torque, the extended speed range obtained using this method is very narrow. This paper summarizes the performance characteristics of existing approaches for obtaining constant power operation and proposes two new techniques, specially applicable to coreless axial flux permanent magnet machine namely, current weakening and relative winding rotation.

AB - In traditional electric machines, it is usually possible to achieve constant power high-speed operation by employing field weakening through the injection of a negative d-axis current component. However, in machines with low armature inductance, such as high power density permanent magnet synchronous machines, and more specifically, coreless machines, which are gaining increasing attention because of their high specific torque, the extended speed range obtained using this method is very narrow. This paper summarizes the performance characteristics of existing approaches for obtaining constant power operation and proposes two new techniques, specially applicable to coreless axial flux permanent magnet machine namely, current weakening and relative winding rotation.

UR - http://www.scopus.com/inward/record.url?scp=85053835356&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85053835356&partnerID=8YFLogxK

U2 - 10.1109/ITEC.2018.8450184

DO - 10.1109/ITEC.2018.8450184

M3 - Conference contribution

AN - SCOPUS:85053835356

SN - 9781538630488

T3 - 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018

SP - 821

EP - 826

BT - 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018

T2 - 2018 IEEE Transportation and Electrification Conference and Expo, ITEC 2018

Y2 - 13 June 2018 through 15 June 2018

ER -

A Comparative Study of Constant Power Operation Techniques for Low Inductance Machines

Abstract

Publication series

Conference

Bibliographical note

Funding

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this