Subjects -> ENERGY (Total: 414 journals)
    - ELECTRICAL ENERGY (12 journals)
    - ENERGY (252 journals)
    - ENERGY: GENERAL (7 journals)
    - NUCLEAR ENERGY (40 journals)
    - PETROLEUM AND GAS (58 journals)
    - RENEWABLE ENERGY (45 journals)

ELECTRICAL ENERGY (12 journals)

Showing 1 - 12 of 12 Journals sorted alphabetically
CES Transactions on Electrical Machines and Systems     Open Access   (Followers: 1)
CPSS Transactions on Power Electronics and Applications     Open Access   (Followers: 4)
CSEE Journal of Power and Energy Systems     Open Access   (Followers: 1)
Electrical Engineering and Power Engineering     Open Access   (Followers: 3)
Electrochemical Energy Reviews     Hybrid Journal   (Followers: 5)
IEEE Open Journal of Power Electronics     Open Access   (Followers: 10)
IEEE Power and Energy Technology Systems Journal     Open Access   (Followers: 4)
IEEE Transactions on Transportation Electrification     Hybrid Journal   (Followers: 3)
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 1)
Journal of Power Electronics     Hybrid Journal   (Followers: 5)
Journal of Power Sources Advances     Open Access   (Followers: 2)
KnE Energy     Open Access  
Similar Journals
Journal Cover
CES Transactions on Electrical Machines and Systems
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2096-3564
Published by IEEE Homepage  [228 journals]
  • Content

    • Pages: 1 - 1
      Abstract: null
      PubDate: THU, 28 DEC 2023 09:18:37 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • An Improved Preisach Distribution Function Identification Method
           Considering the Reversible Magnetization

    • Authors: Long Chen;Lvsheng Cui;Tong Ben;Libing Jing;
      Pages: 351 - 357
      Abstract: This paper presents an identification method of the scalar Preisach model to consider the effect of reversible magnetization in the process of distribution function identification. By reconsidering the identification process by stripping the influence of reversible components from the measurement data, the Preisach distribution function is identified by the pure irreversible components. In this way, the simulation accuracy of both limiting hysteresis loops and the inner internal symmetrical small hysteresis loop is ensured. Furthermore, through a discrete Preisach plane with a hybrid discretization method, the irreversible magnetic flux density components are computed more efficiently through the improved Preisach model. Finally, the proposed method results are compared with the traditional method and the traditional method considering reversible magnetization and validated by the laboratory test for the B30P105 electrical steel by Epstein frame.
      PubDate: WED, 12 JUL 2023 10:01:03 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Design Optimization of a Novel Axial-Radial Flux Permanent Magnet Claw
           Pole Machine with SMC Cores and Ferrite Magnets

    • Authors: Chengcheng Liu;Fan Yang;Wenfeng Zhang;Youhua Wang;
      Pages: 358 - 365
      Abstract: Soft magnetic composite (SMC) material is an ideal soft magnetic material employed for developing 3D magnetic flux electromagnetic equipment, due to its advantages of 3D magnetic isotropy characteristic, low eddy current loss, and simple manufacturing process. The permanent magnet claw pole machine (PMCPM) with SMC cores is a good case that the SMC to be adopted for developing 3D flux electrical machines. In this paper, a novel axial-radial flux permanent magnet claw pole machine (ARPMCPM) with SMC cores and ferrite magnets is proposed. Compared with the traditional PMCPM, the proposed ARPMCPM is designed with only one spoke PM rotor and its whole structure is quite compact. For the performance prediction, the 3D finite element method (FEM) is used. Meanwhile, for the performance evaluation, a previously developed axial flux claw pole permanent magnet machine (AFCPM) is employed as the benchmark machine and all these machines are optimized by using the combined multilevel robust Taguchi method. It can be seen that the proposed ARPMCPM is with higher torque/weight density and operation efficiency.
      PubDate: WED, 12 JUL 2023 10:01:03 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Permanent Magnet Axial Section Shaping Optimization Surface-Mounted
           Permanent Magnet Synchronous Motor

    • Authors: Shengnan Wu;Qifeng Zhao;Wenming Tong;
      Pages: 366 - 371
      Abstract: In this paper, a new type of harmonic injection permanent magnet shape optimization method is proposed to suppress the torque ripple of surface-mounted permanent magnet synchronous motor. The sinusoidal waveform shaping of the axial section of the permanent magnet is added with the third harmonic shaping, and the sine wave and the third harmonic are derived. The optimal ratio is 6:1. The permanent magnet no shaping, sinusoidal shaping and sinusoidal combined third harmonic shaping are compared. The results show that the sinusoidal combined third harmonic shaping design can effectively suppress the torque ripple of the surface mounted permanent magnet synchronous motor and obtain a relatively large output torque. At the same time, a method of using permanent magnet segmentation to approximately equivalently replace sine combined with third harmonic shaping design is proposed, which effectively saves the manufacturing cost of permanent magnets and provides design and research ideas for more economical and effective optimization of surface-mounted permanent magnet motors.
      PubDate: TUE, 20 JUN 2023 10:01:53 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Multi-Objective Optimization Analysis of Auxiliary Flux Modulator Magnetic
           Gear with Unequal Magnetic Poles

    • Authors: Zhan Su;Libing Jing;
      Pages: 372 - 378
      Abstract: To enhance the output torque and minimize the torque ripple of coaxial magnetic gear (CMG), a novel auxiliary flux modulator CMG with unequal magnetic poles is proposed. This design incorporates an inner rotor with an asymmetric sector and a trapezoidal combined N-S pole structure, featuring Halbach arrays for the arrangement of permanent magnets (PMs). The outer rotor PMs adopt a Spoke-type configuration. To optimize the CMG for high output torque and low torque ripple, a sensitivity analysis is conducted to identify key size parameters that significantly influence the optimization objectives. Based on the sensitivity hierarchy of these parameters, a multi-objective optimization analysis is performed using a genetic algorithm (GA) to determine the optimal structural parameter values of the CMG. In addition, a coaxial magnetic gear (CMG) topology with 4 inner and 17 outer pole pairs is adopted, and the parametric model is established. Finally, the electromagnetic properties of the CMG are evaluated using the finite element method. The results indicate a remarkable reduction in torque ripple, specifically by 46.15%.
      PubDate: FRI, 04 AUG 2023 10:01:52 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • An Improved DITC Control Method Based on Turn-On Angle Optimization

    • Authors: Chaozhi Huang;Wensheng Cao;Zhou Chen;Yuliang Wu;Yongmin Geng;
      Pages: 379 - 389
      Abstract: Switched reluctance motor (SRM) usually adopts Direct Instantaneous Torque Control (DITC) to suppress torque ripple. However, due to the fixed turn-on angle and the control mode of the two-phase exchange region, the conventional DITC control method has low adaptability in different working conditions, which will lead to large torque ripple. For this problem, an improved DITC control method based on turn-on angle optimization is proposed in this paper. Firstly, the improved BP neural network is used to construct a nonlinear torque model, so that the torque can be accurately fed back in real time. Secondly, the turn-on angle optimization algorithm based on improved GRNN neural network is established, so that the turn-on angle can be adjusted adaptively online. Then, according to the magnitude of inductance change rate, the two-phase exchange region is divided into two regions, and the phase with larger inductance change rate and current is selected to provide torque in the sub- regions. Finally, taking a 3-phase 6/20 SRM as example, simulation and experimental verification are carried out to verify the effectiveness of this method.
      PubDate: WED, 12 JUL 2023 10:01:03 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Cooling System Design Optimization of an Enclosed PM Traction Motor for
           Subway Propulsion Systems

    • Authors: Longnv Li;Nan Jia;Xizhe Wang;Yiran Yun;Gaojia Zhu;
      Pages: 390 - 396
      Abstract: This paper presents the design optimization of a self-circulated ventilation system for an enclosed permanent magnet (PM) traction motor utilized in the propulsion systems for subway trains. In order to analyze accurately the machine's inherent cooling capacity when the train is running, the ambient airflow and the related heat transfer coefficient (HTC) are numerically investigated considering synchronously the bogie installation structure. The machine is preliminary cooled with air ducts set on the motor shell, and the fluidic-thermal field distributions with only the shell air duct cooling are numerically calculated. During simulations, the HTC obtained in the former steps is applied to the external surface of the machine to model the inherent cooling characteristic caused by the train movement. To reduce the temperature rise and thus guarantee the motor's working reliability, an internal self-circulated air cooling system is proposed according to the machine temperature distribution. The air enclosed in the end-caps is driven by the blades mounted on both sides of the rotor core and forms two air circuits to bring the excessive power losses generated in the heating components to cool regions. The fluid flow and temperature rise distributions of the cooling system's structural parameters are further improved by the Taguchi method in order to confirm the efficacy of the internal air cooling system.
      PubDate: WED, 12 JUL 2023 10:01:03 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Research on Thermal Calculation and End Winding Heat Conduction
           Optimization of Low Speed High Torque Permanent Magnet Synchronous Motor

    • Authors: Shengnan Wu;Zhimin Li;Wenming Tong;
      Pages: 397 - 403
      Abstract: Because of its simple structure, large torque and high efficiency, permanent magnet synchronous motor of low speed and high torque is widely adopted in many fields. In this paper, a 394.5kW mining low-speed high-torque permanent magnet synchronous motor (LSHTPMSM) is regarded as the study object. According to the physical model, a three-dimensional equivalent heat transfer temperature field calculation model of the motor is built to simulate the temperature distribution of the motor under rated conditions. In terms of the serious issue of stator winding temperature increase of permanent magnet synchronous motor of low speed and high torque, the heat conduction optimization of the end of the stator winding is studied, which enhances the heat dissipation effect of the stator end winding, effectively reduces its temperature increase and temperature gradient with the winding in the slot, and improves the practical efficiency and service life of the motor. Finally, the motor temperature rise test platform is constructed for the verification of the feasibility of the optimization scheme, which provides a reference direction for the heat dissipation optimization of permanent magnet synchronous motor of low speed and high torque.
      PubDate: FRI, 04 AUG 2023 10:01:52 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Harmonics in the Squirrel Cage Induction Motor, Analytic Calculation Part
           II: Synchronous Parasitic Torques, Radial Magnetic Forces

    • Authors: G. Kovács;
      Pages: 404 - 421
      Abstract: The magnetic field generated in the air gap of the cage asynchronous machine and the harmonics of the magnetomotive forces creating that magnetic field, as well as the synchronous parasitic torques, radial magnetic forces have been discussed in great detail in the literature, but always separately, for a long time. However, systematization of the phenomenon still awaits. Therefore, it is worth summarizing the completeness of the phenomena in a single study – with a new approach at the same time - in order to reveal the relationships between them. The role of rotor slot number is emphasized much more than before. New formulas derived for both synchronous torques and radial magnetic forces are used for further investigation. It will be shown that both phenomena in subject must be treated together. Formulas will be provided to take into account attenuation. Design guide will be provided to avoid dangerous rotor slot numbers. It will be shown that the generation of synchronous torques and radial magnetic forces do not depend – in this new approach - on the slot combination, but on the rotor slot number itself.
      PubDate: FRI, 04 AUG 2023 10:01:52 -04
      Issue No: Vol. 7, No. 4 (2023)
       
  • Investigation of Various Laminating Materials for Interior Permanent
           Magnet Brushless DC Motor for Cooling Fan Application

    • Authors: A. Infantraj;M. Augustine;E. Fantin Irudaya Raj;M. Appadurai;
      Pages: 422 - 429
      Abstract: Permanent magnet brushless DC motors are used for various low-power applications, namely domestic fans, washing machines, mixer grinders and cooling fan applications. This paper focuses on selecting the best laminating material for the interior permanent magnet brushless DC (IPM BLDC) motor used in the cooling fan of automobiles. Various laminating materials, namely M19-29GA, M800-65A and M43, are tested using finite element analysis. The machine's vital performance metrics, namely the stator current, torque ripple, and hysteresis loss were analyzed in selecting the laminating material. The designed motor is also modelled as a mathematical model from the computed lumped parameters. The performance of the machines was validated through electromagnetic and thermal analysis.
      PubDate: THU, 28 DEC 2023 09:18:37 -04
      Issue No: Vol. 7, No. 4 (2023)
       
 
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  Subjects -> ENERGY (Total: 414 journals)
    - ELECTRICAL ENERGY (12 journals)
    - ENERGY (252 journals)
    - ENERGY: GENERAL (7 journals)
    - NUCLEAR ENERGY (40 journals)
    - PETROLEUM AND GAS (58 journals)
    - RENEWABLE ENERGY (45 journals)

ELECTRICAL ENERGY (12 journals)

Showing 1 - 12 of 12 Journals sorted alphabetically
CES Transactions on Electrical Machines and Systems     Open Access   (Followers: 1)
CPSS Transactions on Power Electronics and Applications     Open Access   (Followers: 4)
CSEE Journal of Power and Energy Systems     Open Access   (Followers: 1)
Electrical Engineering and Power Engineering     Open Access   (Followers: 3)
Electrochemical Energy Reviews     Hybrid Journal   (Followers: 5)
IEEE Open Journal of Power Electronics     Open Access   (Followers: 10)
IEEE Power and Energy Technology Systems Journal     Open Access   (Followers: 4)
IEEE Transactions on Transportation Electrification     Hybrid Journal   (Followers: 3)
Journal of Microwave Power and Electromagnetic Energy     Hybrid Journal   (Followers: 1)
Journal of Power Electronics     Hybrid Journal   (Followers: 5)
Journal of Power Sources Advances     Open Access   (Followers: 2)
KnE Energy     Open Access  
Similar Journals
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JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


Your IP address: 34.204.169.230
 
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