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Investigation of fault modes in perm...

Choi, Gilsu.

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Investigation of fault modes in permanent magnet synchronous machines for traction applications.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigation of fault modes in permanent magnet synchronous machines for traction applications./
Author:	Choi, Gilsu.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2016,
Description:	373 p.
Notes:	Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.
Contained By:	Dissertation Abstracts International78-04B(E).
Subject:	Electrical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10188846
ISBN:	9781369389029

Investigation of fault modes in permanent magnet synchronous machines for traction applications.
Choi, Gilsu.

Investigation of fault modes in permanent magnet synchronous machines for traction applications. - Ann Arbor : ProQuest Dissertations & Theses, 2016 - 373 p.

Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2016.

Over the past few decades, electric motor drives have been more widely adopted to power the transportation sector to reduce our dependence on foreign oil and carbon emissions. Permanent magnet synchronous machines (PMSMs) are popular in many applications in the aerospace and automotive industries that require high power density and high efficiency. However, the presence of magnets that cannot be turned off in the event of a fault has always been an issue that hinders adoption of PMSMs in these demanding applications.

ISBN: 9781369389029Subjects--Topical Terms:

649834
Electrical engineering.

Investigation of fault modes in permanent magnet synchronous machines for traction applications.
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100 1 $a Choi, Gilsu. $3 3342922
245 1 0 $a Investigation of fault modes in permanent magnet synchronous machines for traction applications.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2016
300 $a 373 p.
500 $a Source: Dissertation Abstracts International, Volume: 78-04(E), Section: B.
500 $a Adviser: Thomas M. Jahns.
502 $a Thesis (Ph.D.)--The University of Wisconsin - Madison, 2016.
520 $a Over the past few decades, electric motor drives have been more widely adopted to power the transportation sector to reduce our dependence on foreign oil and carbon emissions. Permanent magnet synchronous machines (PMSMs) are popular in many applications in the aerospace and automotive industries that require high power density and high efficiency. However, the presence of magnets that cannot be turned off in the event of a fault has always been an issue that hinders adoption of PMSMs in these demanding applications.
520 $a This work investigates the design and analysis of PMSMs for automotive traction applications with particular emphasis on fault-mode operation caused by faults appearing at the terminals of the machine. New models and analytical techniques are introduced for evaluating the steady-state and dynamic response of PMSM drives to various fault conditions. Attention is focused on modeling the PMSM drive including nonlinear magnetic behavior under several different fault conditions, evaluating the risks of irreversible demagnetization caused by the large fault currents, as well as developing fault mitigation techniques in terms of both the fault currents and demagnetization risks.
520 $a Of the major classes of machine terminal faults that can occur in PMSMs, short-circuit (SC) faults produce much more dangerous fault currents than open-circuit faults. The impact of different PMSM topologies and parameters on their responses to symmetrical and asymmetrical short-circuit (SSC & ASC) faults has been investigated. A detailed investigation on both the SSC and ASC faults is presented including both closed-form and numerical analysis. The demagnetization characteristics caused by high fault-mode stator currents (i.e., armature reaction) for different types of PMSMs are investigated. A thorough analysis and comparison of the relative demagnetization vulnerability for different types of PMSMs is presented. This analysis includes design guidelines and recommendations for minimizing the demagnetization risks while examining corresponding trade-offs. Two PM machines have been tested to validate the predicted fault currents and braking torque as well as demagnetization risks in PMSM drives. The generality and scalability of key results have also been demonstrated by analyzing several PM machines with a variety of stator, rotor, and winding configurations for various power ratings.
590 $a School code: 0262.
650 4 $a Electrical engineering. $3 649834
650 4 $a Mechanical engineering. $3 649730
650 4 $a Electromagnetics. $3 3173223
690 $a 0544
690 $a 0548
690 $a 0607
710 2 $a The University of Wisconsin - Madison. $b Electrical Engineering. $3 2095968
773 0 $t Dissertation Abstracts International $g 78-04B(E).
790 $a 0262
791 $a Ph.D.
792 $a 2016
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10188846