Results 21 to 30 of about 1,052 (283)

Diagnosis and Robust Design Optimization of SPMSM Considering Back EMF and Cogging Torque due to Static Eccentricity

Energies, 2021
Static eccentricity (SE) is frequently generated by manufacturing processes. As the nonuniformity of the air-gap length is caused by the SE, the torque ripple and cogging torque increase in the motor.
Jin-Cheol Park, Soo-Hwan Park, Jae-Hyun Kim, Soo-Gyung Lee, Geun-Ho Lee, Myung-Seop Lim   +5 more
doaj   +1 more source

Using Taguchi’s method to minimize cogging force of a PM transverse flux linear motor [PDF]

, 2014
Cogging force accounts for important downsides in several aspects, namely causing the speed ripples, inducing vibrations and noises, and increasing the difficulty of position control.
Tseng, Wan-Tsun, Kuo, Chen-Nan
core   +3 more sources

Cogging torque reduction method of internal permanent magnet motor based on stator tooth shoulder chamfer

Journal of Hebei University of Science and Technology, 2021
In order to reduce the cogging torque of interior permanent magnet synchronous motor (IPMSM) for electric vehicles,a method of stator tooth shoulder chamfer was proposed.The equivalent model of air gap length before and after the chamfer of stator tooth ...
Mingjun1 XU, Xueyi1 ZHANG, Jing2 WANG, Shilong1 YAN, Hongbin1 YIN, Yingchao1 ZHOU   +5 more
doaj   +1 more source

Thrust and Cogging Force Improvement on Inductor Linear Motor

IEEJ Transactions on Industry Applications, 2003
This paper shows a novel design method of MAGNAGAP Linear Motor (MLM) which is a type of inductor linear motor. The MLM has several disadvantages of the shortage of thrust and the increase in cogging force with thrust. First, in order to improve the maximum thrust and the motor constant, the design method proposes optimum armature structure which may ...
Shikayama, Toru, Oguro, Ryuichi, Tsuji, Teruo   +2 more
openaire   +2 more sources

Experimental validation of a distribution theory based analysis of the effect of manufacturing tolerances on permanent magnet synchronous machines

AIP Advances, 2017
An experimental study on the effect of permanent magnet tolerances on the performances of a Tubular Linear Ferrite Motor is presented in this paper. The performances that have been investigated are: cogging force, end effect cogging force and generated ...
V. Boscaino, G. Cipriani, V. Di Dio, M. Corpora, D. Curto, V. Franzitta, M. Trapanese   +6 more
doaj   +1 more source

Cogging force reduction for tubular permanent magnet linear motor by slots with different sizes [PDF]

, 2018
Reduction of cogging force is one of the main concerns of tubular permanent magnet linear motor (TPMLM). In this paper, an analytical calculation of air-gap magnetic density is derived.
Jinquan Wang, Xu, Ye, Puyu Wang, Pengfei Hou, Ye Xu, Wang, Jinquan, Hou, Pengfei, Kefeng Huang, Huang, Kefeng, Wang, Puyu   +9 more
core   +1 more source

An Analytical Method for Calculating the Cogging Torque of a Consequent Pole Hybrid Excitation Synchronous Machine Based on Spatial 3D Field Simplification

Energies, 2022
Consequent pole hybrid excitation synchronous (CPHES) machines have the advantage of symmetrical bidirectional magnetomotive force increments. Compared with a traditional hybrid excitation motor (HEM), a CPHES machine improves the disadvantage of ...
Zhiyan Zhang, Ming Zhang, Jing Yin, Jie Wu, Cunxiang Yang   +4 more
doaj   +1 more source

Cogging Force Identification Based on Self-Adaptive Hybrid Self-Learning TLBO Trained RBF Neural Network for Linear Motors

, 2021
The cogging force arising due to the strong attraction forces between the iron core and the permanent magnets, is a common inherent property of the linear motors, which significantly affects the control performance.
C. Ding, Chenyang Ding, Pericle Zanchetta, X. Fu, Xiaofeng Yang, P. Zanchetta, Xuewei Fu, Y. Liu, X. Yang, Yang Liu, M. Tang, Mi Tang   +11 more
core   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +2 more sources

Theoretical and Experimental Study on Claw-Pole Magnetic Levitation Torque Motor for 2D Valve Using Cogging Torque

Actuators, 2022
In this paper, a claw-pole magnetic levitation torque motor (CPMLTM) utilizing cogging torque is proposed as an electromechanical converter (EMC) for two-dimensional valves (2D valve).
Jiahiu Huang, Shulin Xie, Zhankai Song, Sheng Li, Jian Ruan   +4 more
doaj   +1 more source