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IEEE transactions on industry applications: Institute of Electrical and Electronics Engineers transactions on industry applications
Institute of Electrical and Electronics Engineers
IEEE transactions on industry applications: Institute of Electrical and Electronics Engineers transactions on industry applications

Institute of Electrical and Electronics Engineers

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0093-9994

IEEE transactions on industry applications: Institute of Electrical and Electronics Engineers transactions on industry applications/Journal IEEE transactions on industry applications: Institute of Electrical and Electronics Engineers transactions on industry applicationsEI
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    IEEE Transactions on Industry Applications Information for Authors

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    Table of Contents

    C1,3609-3611页
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    IEEE Industry Applications Society Information

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    IEEE Transactions on Industry Applications Publication Information

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    Open-Circuit Fault Diagnosis Strategy for Five-Phase Permanent Magnet Fault-Tolerant Servo Motor Drive Systems Based on Phase Voltage

    Jiazheng LiuXiaokang WengYanchao SunXinxi Tang...
    3612-3622页
    查看更多>>摘要：When the five-phase permanent magnet fault-tolerant servo motor (PMFSM) for aerospace is in the typical condition, rotating over a small position angle range, the motor phase current fluctuates up and down in a small range rather than presenting a sinusoidal waveform. Therefore, the current-based open-circuit (OC) fault diagnosis strategy would be ineffective. The OC fault diagnosis strategy based on the lower power switch voltage and line voltage can only diagnose the power switch OC fault, but not the winding OC fault. Therefore, we propose an OC fault diagnosis strategy based on phase voltage to solve the problem that the present OC fault diagnosis method cannot effectively diagnose the OC faults of power switches and windings under the typical condition of servo motors. The proposed strategy can diagnose not only the single power switch OC fault but also the single winding OC fault under the typical condition. In addition, the proposed strategy can also diagnose OC faults in multiple power switches, OC faults in multiple windings, as well as mixed OC faults in windings and power switches. The simulation results verify that the proposed strategy can quickly and accurately diagnose the OC faults of power switches and windings under the typical condition. The phase voltage diagnosis method used in this paper is the first to be used in the fault diagnosis of five-phase motors. Two thresholds are set by combining the phase voltage to diagnose the winding fault and the power switch fault respectively.
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    Enhanced Bearing Fault Detection in Induction Motors Using Projection-Based SVM

    Narges Khadem HosseiniHamid ToshaniSalman Abdi JalebiSarah Sharifzadeh...
    3623-3636页
    查看更多>>摘要：Fine-tuning the hyperparameters of the Support Vector Machine (SVM) is crucial to making it an accurate classifier in fault detection. The convergence rate of the optimiser and its simplicity are also vital for achieving the optimal boundary. Therefore, a highly accurate fault detection algorithm that combines SVM with a simple, easy-to-implement, and stable optimiser called Projection Recurrent Neural Network (PRNN) is proposed in this paper. The algorithm focuses on detecting bearing faults in induction motors using experimentally measured stator currents. The initial dataset is pre-processed using Discrete Wavelet Transform (DWT), Power Spectral Density (PSD), and cepstrum analysis. A feature set is then derived from several statistical metrics, and Kernel Principal Component Analysis (KPCA) is used to select the most salient features. The SVM is trained using these discriminative features, and its optimisation problem is reformulated as Constrained Nonlinear Programming (CNP). The PRNN is introduced to solve the CNP to effectively determine the optimal decision boundary of the SVM. The study evaluates the accuracy of the proposed algorithm and highlights the advantages of using PRNN in SVM, its dependence on the type of kernel function and the selected features. A 4 kW induction motor is used as a prototype machine for experimental data collection under healthy and faulty conditions. The results show that the proposed algorithm leads to more accurate fault detection compared to the conventional SVM and recent fault detection methods.
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    Back EMF Harmonics Suppression of a Rotor Permanent Magnet Flux-Switching Motor Through Air-Gap Harmonic Design

    Jihong LiaoQian ChenGaohong XuGuohai Liu...
    3637-3647页
    查看更多>>摘要：Unlike the stator permanent magnet flux-switching (SPMFS) motor, the sinusoidal degree of the no-load back electromotive force (back EMF) in the rotor permanent magnet flux-switching (RPMFS) motor is not high, which will decrease the utilization rate of the inverter voltage and the torque performances. Hence, this article proposed a new RPMFS motor according to the principle of the back EMF. On this basis, an optimization design method based on the air-gap harmonics for the RPMFS motor to reduce the total harmonic distortion (THD) of the back EMF. Firstly, based on the flux-modulation theory, the magnetomotive force (MMF)-permeance model is analyzed to investigate the no-load air-gap flux density, contributing to the back EMF, and is obtained by introducing the winding function theory. Then, the minimal main air-gap harmonics to back EMF and the maximum main air-gap harmonic to torque are selected as the optimization objectives to realize the multi-objective optimization design. Finally, an optimal motor prototype was manufactured and tested to verify the feasibility of the proposed motor with low back EMF THD.
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    Comparative Thermal Analysis of Two Permanent Magnet Machines With Improved Heat Dissipation for In-Wheel Traction Application

    Yanlei YuFeng ChaiYulong PeiXi Zhang...
    3648-3662页
    查看更多>>摘要：In this article, the thermal analysis of two permanent magnet machines, permanent magnet vernier machine (PMVM) and synchronous machine (PMSM), is carried out for in-wheel drive application. An improved heat dissipation design is proposed and utilized for the in-wheel motors. Firstly, the in-wheel motors are designed and compared, afterwords, two prototypes of PMVM and PMSM are manufactured. Secondly, the losses of two motors are investigated, e.g., copper loss, core loss, and PM loss. The loss distribution feature of two motors has figured out. Thirdly, the single hub-bearing design for two in-wheel motors is illustrated. Besides, the heat transfer coefficient is further calculated, then the lumped model of single-bearing design is clarified, where the good heat dissipation effect of single hub bearing can be demonstrated theoretically. To further validate the feasibility of analysis above, the CFD models of two in-wheel motors are built. The temperature rises under various typical operation conditions for in-wheel drive are simulated and compared. It is noted that the PM temperature rise in PMVM is much severer than that in PMSM, which threaten the operation safety. Finally, the efficiency maps, temperature rise of windings and rotor parts are measured, respectively, which can agree well with the simulated results. This article aims to provide a comprehensive thermal analysis of PM machines with improved heat dissipation design for in-wheel traction application.
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    A Hierarchical Optimization Method of Industrial Rectifier Transformer Loss Considering Winding Impedance Matching

    Fang LiuJianfeng LiuQianyi LiuYi Yang...
    3663-3673页
    查看更多>>摘要：The industrial rectifier system with high current and low voltage has the problems of poor electromagnetic environment and low energy efficiency. This article proposes a hierarchical optimization method for inductive filtering rectifier transformer, considering the winding impedance matching. To reduce optimization dimensions and improve optimization ability, Sobol sensitivity algorithm is adopted for transformer parameter hierarchical processing. First, the winding arrangement and external system connection of the inductive filtering rectifier transformer are introduced. The current transfer relationship model of the inductive filtering rectifier transformer considering the influence of load harmonics is established, and the impedance matching conditions for implementing harmonic suppression are obtained. Then, according to the transformer design specifications, the constraints and optimization parameters for optimizing transformer loss are determined. Furthermore, the hierarchical architecture is established based on Sobol sensitivity algorithm. Finally, case study shows that the total loss of the transformer with hierarchical optimization method is reduced by 24.77%, and the harmonic distortion rate is reduced from 9.15% to 4.19%, which verifies the effectiveness of the proposed method.
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    Analysis and Suppression of Normal Force Ripple for Long Primary Permanent Magnet Linear Synchronous Motor

    Qiang TanJing LiXinbang WangXuzhen Huang...
    3674-3686页
    查看更多>>摘要：This paper proposes a double-side long primary permanent magnet linear synchronous motor (PMLSM) that can operate in suspension. In this motor, the levitation subsystem and propulsion subsystem are decoupled in terms of both “electrical circuit” and “magnetic circuit”, resulting in lower system control complexity. For this motor, the normal force between the primary and secondary components is a major component of the motor's levitation force. The normal force ripple can hinder improvements in system positioning accuracy and operational stability. This paper investigates the characteristics of normal force ripple in this motor, establishes a model for local normal force calculation and simulation analysis, and reveals the influence mechanism of end effects and armature reactions on the normal force ripple. Based on this, an optimized design solution for split-ended magnetic pole is proposed, effectively suppressing normal force ripple, both locally and whole. Finally, for a 24-slot 8-pole prototype, finite element simulation and experimental tests are conducted. The results show that no normal force ripple in both local and whole aspects of the motor, validating the theoretical research presented in this paper.
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