Results 181 to 190 of about 27,076 (217)

Cogging torque reduction in permanent-magnet synchronous machines with skew

2016 XXII International Conference on Electrical Machines (ICEM), 2016
Cogging torque reduction with skewing techniques was explored on the MIT Robotic Cheetah. Skewed machines with either skewed rotors or stators were constructed, tested, and fielded on the robot. Results were compared with a convolution technique for predicting torque waveforms of skewed machines from the torque waveform of the unskewed machine ...
Matthew G. Angle, Jeffrey H. Lang, James L. Kirtley, Sangbae Kim, David Otten   +4 more
openaire   +1 more source

Cogging Torque Reduction Strategies in Six-Phase BLDC Motors: Skewing and Back EMF Tuning for EV Applications

International Conference Electrical Energy Systems
In the context of electric propulsion, BLDC motors play a pivotal role in elevating performance and efficiency, addressing the evolving needs of various applications. Multi-phase BLDC motors design gaining prominence due to their ability to enhance power
G. Krishnan, S. Prabhu, L. S. Reddy, P. Chandrasekar, M. Chennakesava, P. P. Kalyan   +5 more
semanticscholar   +1 more source

Cogging Torque Reduction of Axial Flux Permanent Magnet Synchronous Motors For Gravity Energy Storage System

2024 IEEE 7th International Electrical and Energy Conference (CIEEC)
The axial flux permanent magnet synchronous motor (AFPMSM) has the characteristics of simple structure, small volume, high torque density, and high efficiency. Thus, it is suitable for the gravity energy storage systems.
Hongyi Zhu, Chen Liang, Xiping Ma, Li Luo   +3 more
semanticscholar   +1 more source

Reduction of cogging torque in spindle motors for CD-ROM drive

IEEE Transactions on Magnetics, 1998
In this paper an approach to design a low cogging torque spindle motor without skewing stator slots or magnet poles is proposed. The effects of the slot and pole number combination and optimal choice of the width ratio of armature teeth to magnet pole are are investigated.
C.C. Hwang, S.B. John, S.S. Wu
openaire   +1 more source

Cogging Torque Reduction Using Magnet Phase Inverted Shape in Dual Axial Gap Motor

2024 IEEE Industrial Electronics and Applications Conference (IEACon)
This paper describes the design of permanent magnets for dual axial gap motors to reduce cogging torque. In this method, a radially segmented and circumferentially shifted skewed shape is designed and placed in the lower part of the rotor axial direction.
Akito Mizuno, W. Kitagawa, Takeshita Takaharu   +2 more
semanticscholar   +1 more source

Cogging Torque Reduction of Hybrid Excitation Flux Switching Motor

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC), 2015
This paper analyzes the cogging torque mechanism of the hybrid excitation flux switching motor. The finite element analysis (FEA) is used to study different cogging torque suppression methods of the motor. These methods include rotor skewing, variable tooth width, auxiliary slot, variable rotor arcs.
J.H. Hu, L. Wang, J.B. Zou, B. Zhao
openaire   +1 more source

Study on cogging torque reduction methods of PM stepping motor

2004 International Conference on Power System Technology, 2004. PowerCon 2004., 2005
Cogging torque is the main factor that causes a PM stepping motor to be shaken, noisy and even influences its safe operation. After introducing the structure of PM stepping motor, this paper analyzes the effect of the power supply mode on the electromagnetic torque, and the measures to reduce cogging torque of PM stepping motor.
null Fengge Zhang, null Ningze Tong, null Fengxiang Wang   +2 more
openaire   +1 more source

Cogging torque reduction of brushless DC motor for an electric wheelchair

2016 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), 2016
This paper presents a designing method to reduce the cogging torque of a brush less dc (BLDC) motor for an electric wheelchair. The initial model of a BLDC motor is designed by using the loading distribution method. Cogging torque is one of the main reasons not only to cause the torque ripple, but also to increase unwanted vibration of a BLDC motor ...
null Youngjun Kim, null Cheewoo Lee
openaire   +1 more source

Noise and cogging torque reduction in brushless DC ceiling fan

2015 18th International Conference on Electrical Machines and Systems (ICEMS), 2015
This paper presents the improvements in the design of a three phase BLDC motor for noise reduction. The end application of BLDC motor is a ceiling fan. Acoustic noise spectrum of the motor is captured and analyzed. It is shown that, the cogging torque is the dominant cause of the acoustic noise.
Anchal Saxena, B.G. Fernandes
openaire   +1 more source

Cogging torque reduction in a novel axial flux PM motor

International Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006., 2006
This article shows the reduction of cogging torque in a novel axial flux permanent magnet (AFPM) motor through the various design schemes. 3D finite element method is used for the exact magnetic field analysis. The effects of slot shapes and skewing of slot on the cogging torque and average torque have been investigated in detail.
null Yon-Do Chun, null Dae-Hyun Koo, null Yun-Hyun Cho, null Won-Young Cho   +3 more
openaire   +1 more source