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# IEEE Transactions on Industrial Electronics

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Displaying Results 1 - 25 of 40

Publication Year: 2012, Page(s):C1 - 2389
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• ### IEEE Transactions on Industrial Electronics publication information

Publication Year: 2012, Page(s): C2
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• ### Guest Editorial

Publication Year: 2012, Page(s):2390 - 2392
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• ### Investigation of the $dq$-Equivalent Model for Performance Prediction of Flux-Switching Synchronous Motors With Segmented Rotors

Publication Year: 2012, Page(s):2393 - 2402
Cited by:  Papers (12)
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An equivalent dq model of three-phase flux-switching synchronous motors employing a segmental rotor is constructed and tested for predicting steady-state performance. Both the wound-field and permanent-magnet excited motors are represented. The unconventional topologies of the two types of motors present significant departure from the basic assumptions of the dq theory, even though t... View full abstract»

• ### Modeling and Parametric Design of Permanent-Magnet AC Machines Using Computationally Efficient Finite-Element Analysis

Publication Year: 2012, Page(s):2403 - 2413
Cited by:  Papers (65)
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Computationally efficient finite-element analysis (FEA) (CE-FEA) fully exploits the symmetries of electric and magnetic circuits of sine-wave current-regulated synchronous machines and yields substantial savings of computational efforts. Motor performance is evaluated through Fourier analysis and a minimum number of magnetostatic solutions. The major steady-state performance indices (average torqu... View full abstract»

• ### Comparison of Analytical Models of Cogging Torque in Surface-Mounted PM Machines

Publication Year: 2012, Page(s):2414 - 2425
Cited by:  Papers (51)
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This paper compares four analytical models for predicting the cogging torque in surface-mounted permanent-magnet machines, viz., lateral force (LF), complex permeance (CP), and exact subdomain (SD) models, together with an SD model based on a single slot/pole. The models are evaluated for the air-gap flux density, cogging torque, back electromotive force (EMF), electromagnetic torque, saturation e... View full abstract»

• ### Multiphysics Modeling of a Permanent Magnet Synchronous Machine by Using Lumped Models

Publication Year: 2012, Page(s):2426 - 2437
Cited by:  Papers (60)
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This paper describes the modeling of a permanent magnet synchronous machine (PMSM) by using lumped models (LMs). Designing electrical machines necessarily involves several fields of physics, such as electromagnetics, thermics, mechanics, and acoustics. Magnetic, electrical, electronic, and thermal parts are represented by LMs, whereas vibro-acoustic and mechanical parts are represented by analytic... View full abstract»

• ### Influence of Nonideal Voltage Measurement on Parameter Estimation in Permanent-Magnet Synchronous Machines

Publication Year: 2012, Page(s):2438 - 2447
Cited by:  Papers (35)
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This paper investigates the influence of nonideal voltage measurements on the parameter estimation of permanent-magnet synchronous machines (PMSMs). The influence of nonideal voltage measurements, such as the dc bus voltage drop, zero shift in the amplifier, and voltage source inverter nonlinearities, on the estimation of different machine parameters is investigated by theoretical and experimental... View full abstract»

• ### Demagnetization Analysis of Additional Permanent Magnets in Salient-Pole Synchronous Machines With Damper Bars Under Sudden Short Circuits

Publication Year: 2012, Page(s):2448 - 2456
Cited by:  Papers (18)
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To improve output performance of salient-pole synchronous machines, permanent-magnet-assisted salient-pole synchronous machines (PMa-SMs) that have permanent magnets (PMs) between the field poles were previously developed. The PM effect of increasing the output power and the terminal voltage has already been confirmed by finite element analysis (FEA) and experiments under steady states. In this pa... View full abstract»

• ### Rotor Geometry Design of Interior PMSMs With and Without Flux Barriers for More Accurate Sensorless Control

Publication Year: 2012, Page(s):2457 - 2465
Cited by:  Papers (26)
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At low speed, the rotor-position estimation in sensorless control is often carried out based on the evaluation of the phase-current ripples resulting from the supply of high-frequency voltage test signals. However, the rotor-position estimation is affected by cross-saturation in the machine, resulting in less accurate position estimations at higher loads. As the importance of sensorless control of... View full abstract»

• ### Permanent Magnet Synchronous Machine Sizing: Effect on the Energy Efficiency of an Electro-Hydraulic Forklift

Publication Year: 2012, Page(s):2466 - 2474
Cited by:  Papers (16)
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The energy efficiency of an electro-hydraulic forklift is significantly improved by using a permanent-magnet-synchronous-motor-servo-drive-based direct pump control to control the position of the fork without control valves. This paper provides a short evaluation of the hydraulic system and a more detailed analysis of the losses of the electric machine drive system. A theoretical approach is taken... View full abstract»

• ### Radial-Flux Permanent-Magnet Hub Drives: A Comparison Based on Stator and Rotor Topologies

Publication Year: 2012, Page(s):2475 - 2483
Cited by:  Papers (12)
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In this paper, the performances of electric vehicle (EV) in-wheel (hub) nonoverlap-winding permanent-magnet motors with different stator and rotor topologies are compared. The calculation of the frequency losses in the design optimization of the hub motors is specifically considered. Also, the effect of the slot and pole number choice that determines the winding factor of the machine is investigat... View full abstract»

• ### Optimal Design of Permanent Magnet Motors to Improve Field-Weakening Performances in Variable Speed Drives

Publication Year: 2012, Page(s):2484 - 2494
Cited by:  Papers (34)
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Two motors are studied and optimized for transportation applications. The objective is to design motors whose external model is well suited for conventional vector control. Hence, in the design procedure, the emphasis is on the back-electromotive force (EMF) waveforms and external parameters. The first topology is a surface-mounted (nonsalient pole) motor with segmented magnets reducing significan... View full abstract»

• ### Permanent-Magnet Optimization in Permanent-Magnet-Assisted Synchronous Reluctance Motor for a Wide Constant-Power Speed Range

Publication Year: 2012, Page(s):2495 - 2502
Cited by:  Papers (72)
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A permanent-magnet (PM)-assisted synchronous reluctance (PMASR) machine exhibits both high efficiency and high flux-weakening (FW) range. However, the best performance is achieved after a machine design optimization. In industry applications, the design of PMASR machines requires to satisfy an increasing number of limitations. The key points are lamination geometry, material property, and control ... View full abstract»

• ### Finite-Element-Based Multiobjective Design Optimization Procedure of Interior Permanent Magnet Synchronous Motors for Wide Constant-Power Region Operation

Publication Year: 2012, Page(s):2503 - 2514
Cited by:  Papers (57)
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This paper proposes the design optimization procedure of three-phase interior permanent magnet (IPM) synchronous motors with minimum weight, maximum power output, and suitability for wide constant-power region operation. The particular rotor geometry of the IPM synchronous motor and the presence of several variables and constraints make the design problem very complicated. The authors propose to c... View full abstract»

• ### Estimation of Assist Effects by Additional Permanent Magnets in Salient-Pole Synchronous Generators

Publication Year: 2012, Page(s):2515 - 2523
Cited by:  Papers (14)
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The characteristic improvements of salient-pole synchronous generators by inserting additional permanent magnets are investigated from both results of finite-element analyses and experiments. First, the assist effects of the magnets in a megavoltampere-class generator are analyzed by the finite-element method. It is clarified that the additional permanent magnets have the effects of reducing magne... View full abstract»

• ### Time-Stepping Finite-Element Analysis of a 14-MVA Salient-Pole Shipboard Alternator for Different Damper Winding Design Solutions

Publication Year: 2012, Page(s):2524 - 2535
Cited by:  Papers (15)
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Salient-pole synchronous machines are conventional electric machines which have been widely used and studied over decades. Some aspects of their modeling and analysis, however, still constitute a challenge for designers and require state-of-the-art methodologies to be applied. As an example, this paper addresses a 14-MVA salient-pole shipboard alternator, of which full-scale prototypes are built a... View full abstract»

• ### Calculation of Unbalanced Magnetic Pull in a Salient-Pole Synchronous Generator Using Finite-Element Method and Measured Shaft Orbit

Publication Year: 2012, Page(s):2536 - 2549
Cited by:  Papers (22)
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In this paper, the unbalanced magnetic forces which act upon the rotor of a salient-pole synchronous generator due to eccentric motion of the rotor shaft in the presence of magnetic field in no-load and loaded condition are calculated using the finite-element method. The displacement of the rotor is modeled using the actual shaft orbit measured on a 5-MVA salient-pole generator driven by a gas tur... View full abstract»

• ### Investigation of a New Topology of Hybrid Excitation Doubly Salient Brushless DC Generator

Publication Year: 2012, Page(s):2550 - 2556
Cited by:  Papers (37)
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This paper proposes and implements a new topology of hybrid excitation doubly salient brushless dc generator (HEDS-BLDCG). Configuration and flux control principle of the generator are presented. Two-dimensional finite-element methods are used to investigate the static field distribution characteristics of this new type of generator. Field-circuit coupled analysis is successfully performed, and th... View full abstract»

• ### Slot Harmonic Impact on Rotor Losses in Fractional-Slot Permanent-Magnet Machines

Publication Year: 2012, Page(s):2557 - 2564
Cited by:  Papers (49)
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Fractional-slot permanent-magnet (PM) machines have several advantages, but they suffer from the high content of space harmonics in the air-gap magnetomotive force (MMF) distribution. The MMF space harmonic amplitude and frequency depend on the particular combination of numbers of slots and poles. Such harmonics induce losses in the rotor since they are not synchronous with the rotor speed. This p... View full abstract»

• ### Remarks on Torque Estimation Accuracy in Fractional-Slot Permanent-Magnet Motors

Publication Year: 2012, Page(s):2565 - 2572
Cited by:  Papers (22)
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In permanent-magnet (PM) synchronous machines, when using integral-slot windings, the torque computed by using the d-q -axis theory is almost independent of the variation of the flux linkage with the rotor position. This is not verified when fractional-slot PM motors are used. The iron saturation greatly affects the torque behavior, increasing the torque ripple significantly. Particu... View full abstract»

• ### Electromagnetic Analysis of Axial-Flux Permanent Magnet Synchronous Machines With Fractional Windings With Experimental Validation

Publication Year: 2012, Page(s):2573 - 2582
Cited by:  Papers (38)
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Axial-flux permanent magnet (PM) synchronous machines are suitable for direct drive applications. Axial-flux PM synchronous machines with fractional windings provide high power density, low torque ripple, and sinusoidal phase voltages, but suffer from high rotor losses due to stator field harmonics and slotting. This paper formulates an electromagnetic model based on the polar coordinate represent... View full abstract»

• ### A Multipole Synchronous Machine With Nonoverlapping Concentrated Armature and Field Windings on the Stator

Publication Year: 2012, Page(s):2583 - 2591
Cited by:  Papers (32)
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This paper presents a new type of multipole synchronous machine (SM) in which 2pa-pole armature and 2pf-pole field windings are centrally wound around individual stator teeth. The proposed machine operates as a (2pa + 2pf)-pole SM by providing a magnetic coupling between the armature and field windings through a 2pr-pole reluctance rotor. A 4-kVA (32 + 48)-pole p... View full abstract»

• ### Speed Regulation Technique of One Bearingless 8/6 Switched Reluctance Motor With Simpler Single Winding Structure

Publication Year: 2012, Page(s):2592 - 2600
Cited by:  Papers (31)
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Some types of bearingless switched reluctance motors (BSRMs) have been developed up to now. Their differences mainly focus on different stator-rotor tooth number and winding structures: two layers of windings and single layer of windings for 12/8 or 8/6 BSRM. Their driving principles are just the same: driving current and radial force current are regulated to generate torque and radial force separ... View full abstract»

• ### Torque Ripple Reduction of a Direct-Drive Permanent-Magnet Synchronous Machine by Material-Efficient Axial Pole Pairing

Publication Year: 2012, Page(s):2601 - 2611
Cited by:  Papers (37)
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This paper investigates a material-efficient axial pole pairing method for torque ripple reduction in a direct-drive outer-rotor surface-mounted permanent-magnet synchronous machine. The effects of the magnet pole arc width on the torque ripple characteristics of the machine are first established by both analytical and 2-D finite element approaches. Furthermore, the effectiveness of the axial pole... View full abstract»

## Aims & Scope

IEEE Transactions on Industrial Electronics encompasses the applications of electronics, controls and communications, instrumentation and computational intelligence for the enhancement of industrial and manufacturing systems and processes.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Leopoldo Garcia Franquelo
Escuela Superior de Ingenieros