Journal ArticleDOI
Acceleration-Performance Optimization for Motors With Large Air Gaps
TLDR
It is shown that the use of 3-D instead of 2-D simulation tools is obligatory for motors with large air gaps for achieving sufficient simulation accuracy.Abstract:
This paper presents an optimization-procedure yielding for minimal acceleration times for different speed ranges using the example of a magnetically levitated slice motor with a large air gap. The optimization is based on a set of analytical equations together with selected 3-D finite element method simulations with the aim to optimize both the stator geometry and the number of drive turns. It is shown that the use of 3-D instead of 2-D simulation tools is obligatory for motors with large air gaps for achieving sufficient simulation accuracy. The relevant equations for the optimization are derived, and the accuracy of the proposed method is verified by measurements on a prototype system.read more
Citations
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Journal ArticleDOI
Bearingless 300-W PMSM for Bioreactor Mixing
TL;DR: Both torque and magnetic bearing forces are created inside this disk-shaped motor using a sophisticated control (proportional-integral-differential vector control) with superimposed drive and bearing currents fed to the concentrated combined stator coils.
Journal ArticleDOI
Magnetically Levitated Slice Motors—An Overview
TL;DR: This publication gives a comprehensive overview over different concepts of magnetically levitated motors with slice-shaped rotors that differ in their construction and the way the bearing and drive forces are created.
Proceedings ArticleDOI
Magnetically levitated slice motors - an overview
TL;DR: This publication gives a comprehensive overview over different concepts of magnetically levitated motors with slice-shaped rotors that differ in their construction and the way the bearing and drive forces are created.
Journal ArticleDOI
Design of Halbach-Array-Based Permanent-Magnet Motors With High Acceleration
Suman Dwari,Leila Parsa +1 more
TL;DR: The Halbach magnetized permanent-magnet (PM) motors can be designed to achieve high torque density and to realize hollow rotor structure with very low rotational inertia to meet the requirements for very fast dynamic performance.
Journal ArticleDOI
Current-Controlled Multiphase Slice Permanent Magnetic Bearingless Motors With Open-Circuited Phases: Fault-Tolerant Controllability and Its Verification
TL;DR: The operation of current-controlled multiphase slice permanent-magnet bearingless motors with different open-circuited faulty phases is analyzed, and their fault-tolerant controllability in the general case is investigated.
References
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Journal ArticleDOI
Overview of Permanent-Magnet Brushless Drives for Electric and Hybrid Electric Vehicles
K. T. Chau,C.C. Chan,Chunhua Liu +2 more
TL;DR: An overview of permanent-magnet (PM) brushless (BL) drives for EVs and HEVs is presented, with emphasis on machine topologies, drive operations, and control strategies.
Journal ArticleDOI
Models for Bearing Damage Detection in Induction Motors Using Stator Current Monitoring
TL;DR: New models for the influence of rolling-element bearing faults on induction motor stator current are described, based on two effects of a bearing fault: the introduction of a particular radial rotor movement and load torque variations caused by the bearing fault.
Journal ArticleDOI
Power Electronics and Motor Drives Recent Progress and Perspective
TL;DR: The importance of power electronics, the recent advances of power semiconductor devices, converters, variable-frequency AC drives, and advanced control and estimation techniques will be reviewed briefly.
Journal ArticleDOI
Controlled AC Electrical Drives
John W. Finch,Damian Giaouris +1 more
TL;DR: Control techniques which are being applied to make AC drives a rapidly growing area are discussed, with concentration on recent trends suitable for practical applications in the industry with good dynamic behavior.
Proceedings ArticleDOI
Models for bearing damage detection in induction motors using stator current monitoring
TL;DR: In this article, the influence of rolling-element bearing faults on induction motor stator current has been investigated and a new detailed approach is proposed based on two effects of a bearing fault: the introduction of a particular radial rotor movement and load torque variations caused by the bearing fault.
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