Results 31 to 40 of about 285 (175)

Mathematical model of induction motor containing slot harmonics effect in magnetic field and various types defects presence [PDF]

Омский научный вестник, 2018
The article presents mathematical model of induction motor taking into account the appearance of the slot harmonics in the air gap magnetic field induction. This model can be used in the development of stator current spectrum analysis methods.
V. V. Kharlamov, A. V. Sklyar, D. I. Popov, A. V. Eroshenko   +3 more
doaj   +1 more source

Influence of Magnetic Pole Stepping Combined with Auxiliary Stator Slots on the Stability of Dual-Rotor Disc Motors

Energies, 2023
With the growing utilization of disc motors, the enhancement of their operational stability has become a critical research area. The existing studies usually focus on improving the pole structure of the rotor or the stator structure to optimize one ...
Tong Guo, Yang Cao, Zhong Qian, Jianping Xia, Xuhong Kang, Guanben Xia, Yanan Yang, Wendong Zhang, Yujie Wang, Guoqing Wu   +9 more
doaj   +1 more source

Position estimation in induction machines utilizing rotor bar slot harmonics and carrier frequency signal injection [PDF]

Proceedings of Power Conversion Conference - PCC '97, 2000
This paper presents a simple and robust way of utilizing harmonic saliencies for the estimation of rotor position. A carrier frequency voltage excitation is used to produce a carrier frequency current, which contains the desired spatial information. A closed-loop, tracking observer is then used to estimate the rotor position.
M.W. Degner, R.D. Lorenz
openaire   +1 more source

Analysis of Optimal Rotors Skew to Improve the Total Harmonic Distortion of Back Electromotive Force in MG-PMSM for Traction

IEEE Access, 2023
This paper presents optimal rotor permanent magnet (PM) and rotor pole-piece skew to improve the total harmonic distortion (THD) of the back electromotive force (Back-EMF) in magnetic geared permanent magnet synchronous motor (MG-PMSM) for traction.
Ik-Hyun Jo, Ju Lee, Hyung-Woo Lee, Jae-Bum Lee, Jae-Hyeon Lim, Seong-Hwi Kim, Chan-Bae Park   +6 more
doaj   +1 more source

Investigation of Harmonic Losses to Reduce Rotor Copper Loss in Induction Motors for Traction Applications

World Electric Vehicle Journal
The focus of this paper is to seek means of increasing induction motor efficiency to a comparable level to a permanent magnet motor. Harmonic and high-frequency losses increase the rotor core and copper loss, often limiting IM efficiency. The research in
Muhammad Salik Siddique, Hulusi Bülent Ertan, Muhammad Shahab Alam, Muhammad Umer Khan   +3 more
doaj   +1 more source

Performance Analysis and Optimization of a Novel Outer Rotor Field-Excited Flux-Switching Machine with Combined Semi-Closed and Open Slots Stator

Energies, 2022
Slotting effect in electric machines reduces flux per pole that effect magnetic flux density distribution in the air gap which induces harmonics in magnetic flux density causing flux pulsation, that in turn generates dominant torque pulsation in the form
Siddique Akbar, Faisal Khan, Wasiq Ullah, Basharat Ullah, Ahmad H. Milyani, Abdullah Ahmed Azhari   +5 more
doaj   +1 more source

Investigation of Torque and Reduction of Torque Ripples through Assisted-Poles in Low-Speed, High-Torque Density Spoke-Type PMSMs

Machines
In this article, rotor designs utilizing assisted-poles are investigated for a high-torque density spoke-type permanent magnet synchronous machine (PMSM) with fractional slot concentrated winding (FSCW) to explore the rich air-gap magnetic field ...
Sayyed Haleem Shah, Yun-Chong Wang, Dan Shi, Jian-Xin Shen   +3 more
doaj   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Comparative Thermal Performance Analysis of Induction and Interior Permanent Magnet Machines for Electric Vehicles Under Varying Drive Cycles Using ANSYS Motor‐CAD Software: Approach Toward Sustainability

Engineering Reports, Volume 8, Issue 2, February 2026.
Thermal analysis of machines. ABSTRACT A comparative thermal performance study is carried out on an induction machine (IM) and an interior permanent magnet synchronous machine (i‐PMSM) for electric vehicle applications under the standardized Highway Fuel Economy Test (HWFET) and Worldwide Harmonized Light Vehicles Test Procedure (WLTP) Class 3 drive ...
R. Prasanna, S. Raja, Maher Ali Rusho, Shubham Sharma, T. Ramachandran, Krishna Prakash Arunachalam, Ghanshyam G. Tejani, Huda Fish   +7 more
wiley   +1 more source

Space Harmonics Elimination for Fractional-Slot Windings With Two-Slot Coil Pitch

IEEE Access, 2019
Recently, fractional-slot windings with two-slot coil pitch are receiving more and more attention due to their lower space harmonic contents in stator magnetomotive force (MMF) compared with the widely-used fractional-slot nonoverlapping counterparts. To
Haiyang Y. Sun, Kai Wang
doaj   +1 more source