Three-Phase Reluctance Generator with Permanent Magnets Buried in Stator Core

A new type of self-bearing motor that uses Lorentz-type forces to generate both bearing force and motoring torque has been developed. The motor stator is of slotless construction with four three-phase windings. The motor rotor is constructed of 16 surface mounted permanent magnets (PM’s). The main advantage of the design is that it eliminates the tradeoff between motoring torque and bearing force with PM thickness as found in previous designs. This paper presents the dynamic model for the self-bearing motor and illustrates how the model is integrated into the overall system model of the motor test rig. The dynamic model is validated against experimentally measured transfer functions with good agreement between the two.

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Model for three-phase induction motors with stator core faults

IET Electric Power Applications ◽

10.1049/iet-epa.2009.0281 ◽

2010 ◽

Vol 4 (8) ◽

pp. 591 ◽

Cited By ~ 9

Author(s):

P.M. de la Barrera ◽

G.R. Bossio ◽

J.A. Solsona ◽

G.O. Garcı́a

Keyword(s):

Induction Motors ◽

Stator Core ◽

Three Phase

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IMPROVEMENTS ON THE ELECTRIC DRIVE ELEVATOR PROTOTYPE. PART II OPERATING TESTS

The Scientific Bulletin of Electrical Engineering Faculty ◽

10.1515/sbeef-2017-0022 ◽

2018 ◽

Vol 18 (1) ◽

pp. 49-54 ◽

Cited By ~ 1

Author(s):

M. Gaiceanu ◽

S. Epure

Keyword(s):

Power Factor ◽

Electric Drive ◽

Permanent Magnets ◽

Power Converters ◽

Power Converter ◽

Unity Power Factor ◽

System A ◽

Three Phase ◽

Industrial Solution ◽

Adequate Power

Abstract The prototype of the electric elevator consists of grid power converter connected with three different loads through the adequate power converters [1]. The main objective of this paper is to develop the industrial solution of the regenerative elevator power system, a system containing DC machines, asynchronous three-phase and synchronous with permanent magnets motors. In this paper, only the improvements done on the three-phase power inverter connected to the induction motor will be described. The same improvements can be applied to the three-phase power inverter connected to the synchronous machine. The grid power converter assures the unity power factor operation. The resulted experimental results are shown.

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An Electromagnetic Moment in Short Circuits in Electrical Rotating Machines with High-Coercivity Permanent Magnets

Indonesian Journal of Electrical Engineering and Computer Science ◽

10.11591/ijeecs.v7.i2.pp483-491 ◽

2017 ◽

Vol 7 (2) ◽

pp. 483 ◽

Cited By ~ 1

Author(s):

Flyur Ismagilov ◽

Irek Khayrullin ◽

Vyacheslav Vavilov ◽

Valentina Ayguzina

Keyword(s):

Computer Model ◽

Permanent Magnets ◽

Short Circuit ◽

High Coercivity ◽

Magnetic Flux Density ◽

Simulation Data ◽

Stator Core ◽

Rotating Machine ◽

Electromagnetic Moment ◽

Short Circuits

<p>This paper presents a computer model of an electrical rotating machine with high-coercivity permanent magnets and research of various short-circuit types in the electrical rotating machine with high-coercivity permanent magnets, including turn-to-turn short circuit. Diagnostic criteria of short circuits are revealed. There are the electromagnetic moment and the magnetic flux density in the stator core back. With comparison the experiment and computer modeling results, it was found that the created computer model is highly accurate and completely repeats the experiment results. The numerical discrepancy between the experimental data and the simulation data is below 5%. The obtained results can be used in practice in the design of the electrical rotating machine with high-coercivity permanent magnets.</p>

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Phase-Coupling Effects in Three-Phase Inductive Fault-Current Limiter Based on Permanent Magnets

IEEE Transactions on Magnetics ◽

10.1109/tmag.2019.2956147 ◽

2020 ◽

Vol 56 (2) ◽

pp. 1-7 ◽

Cited By ~ 2

Author(s):

J. Linden ◽

Y. Nikulshin ◽

A. Friedman ◽

Y. Yeshurun ◽

S. Wolfus

Keyword(s):

Permanent Magnets ◽

Fault Current ◽

Fault Current Limiter ◽

Coupling Effects ◽

Phase Coupling ◽

Three Phase ◽

Current Limiter

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Construction of a New Type of Modular Tubular Machine

Advanced Engineering Forum ◽

10.4028/www.scientific.net/aef.8-9.437 ◽

2013 ◽

Vol 8-9 ◽

pp. 437-444

Author(s):

Dan Cristian Popa ◽

Vasile Ioan Gliga ◽

Lorand Szabo

Keyword(s):

Composite Material ◽

Permanent Magnets ◽

Experimental Tests ◽

Magnetic Composite ◽

Modular Construction ◽

Soft Magnetic ◽

Electromagnetic Excitation ◽

Stator Core ◽

Soft Magnetic Composite ◽

New Type

A new type of tubular machine in modular construction that can work either like motor or generator is presented in the paper. It belongs to the transverse flux machines class and operates based on the variable reluctance principle. Two topologies of the machine, with and without permanent magnets (PM), are approached here. A prototype of the tubular machine with electromagnetic excitation, having a stator core built from laminated sheets and the mover core made of soft magnetic composite material, was built and is shown in the paper. The use of the new soft magnetic composite material, Somaloy 700 HR, having 3D magnetic isotropy, brings important advantages in building the structure. The innovative construction, implying the alternation of the magnetic pieces called modules with no-magnetic spacers, has very good performances. A prototype of this machine was built and a test bench equipped with control and monitoring devices in order to perform experimental tests. Some possible applications showing the potential of the proposed machine are also presented.

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Dynamic Modeling and Validation of a Lorentz, Self Bearing Motor Test Rig

Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award ◽

10.1115/2001-gt-0567 ◽

2001 ◽

Cited By ~ 1

Author(s):

Lyndon S. Stephens

Keyword(s):

Dynamic Model ◽

Permanent Magnets ◽

Transfer Functions ◽

System Model ◽

Test Rig ◽

Motor Test ◽

Three Phase ◽

New Type ◽

Bearing Force ◽

Good Agreement

A new type of self bearing motor that uses Lorentz type forces to generate both bearing force and motoring torque has been developed. The motor stator is of slotless construction with four, three phase windings. The motor rotor is constructed of 16 surface mounted permanent magnets (PM’s). The main advantage of the design is that it eliminates the tradeoff between motoring torque and bearing force with PM thickness as found in previous designs. This paper presents the dynamic model for the self bearing motor and illustrates how the model is integrated into the overall system model of the motor test rig. The dynamic model is validated against experimentally measured transfer functions with good agreement between the two.

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Electromagnetic Induced Force Study in the Magnetoelectric Generator Winding

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.792.3 ◽

2015 ◽

Vol 792 ◽

pp. 3-7

Author(s):

Aleksandr Tatevosyan ◽

Andrey Tatevosyan ◽

Valeriya Fokina

Keyword(s):

Decision Making ◽

Permanent Magnets ◽

Frequency Converter ◽

Induction Machine ◽

Synchronous Generator ◽

Load Resistance ◽

Electrical Network ◽

Synchronous Generators ◽

Three Phase ◽

Theoretical Foundations

The paper considers the study of the electromagnetic force (EMF) of a synchronous generator based on the three-phase induction machine. The stand includes: a frequency converter, an induction motor, a synchronous generator, a three-phase rectifier, an active load resistance, power protection and inclusion industrial electrical network. The study provides an analytical solution to one of the main objectives within theoretical foundations of electrical engineering, formulated so to reflect the decision making while designing new types of synchronous generators with permanent magnets.

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Motor for Direct Drive of Electric Wheelchair

International Journal of Engineering Research in Africa ◽

10.4028/www.scientific.net/jera.31.94 ◽

2017 ◽

Vol 31 ◽

pp. 94-103 ◽

Cited By ~ 2

Author(s):

Ján Kaňuch ◽

Peter Girovský

Keyword(s):

Electric Vehicles ◽

Permanent Magnets ◽

Low Voltage ◽

Frequency Converter ◽

Synchronous Motor ◽

Open Circuit ◽

Direct Drive ◽

Drive Unit ◽

Three Phase ◽

Load Simulation

Described in the paper is analysis of properties of synchronous motor with outer permanent magnets rotor. The motor, having an atypical construction, is powered by low voltage from a three phase frequency converter. It is suitable as a drive unit for direct power drives of small electric vehicles and electric wheelchairs. Theoretical analysis of the synchronous motor with outer permanent magnets rotor starts with the air gap space configuration. The present paper describes the main results from open-circuit and load simulation. The section of paper describes the mechanical construction of prototype of the synchronous machine. Experimental results of measurements of the machine prototype in the generatoric and motoric mode are described. Experimental measurements verified stability of the motor parameters at its loading.

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