Design and Optimization of a Low-Torque-Ripple High-Torque-Density Vernier Machine Using Ferrite Magnets for Low-Speed Direct-Drive Applications

2021 ◽  
Author(s):  
Cheng Gong ◽  
Fang Deng
Keyword(s):  
Torque Ripple ◽  
Direct Drive ◽  
Low Speed ◽  
Torque Density ◽  
Design And Optimization ◽  
High Torque ◽  
Low Torque

Development and Application of Low-Speed and High-Torque Permanent Magnet Synchronous Motor

2012 ◽  
Vol 229-231 ◽  
pp. 888-894 ◽  
Author(s):  
Jun Guo Cui ◽  
Wen Sheng Xiao ◽  
Jian Bo Zhao ◽  
Jing Xi Lei ◽  
Xiao Dong Wu ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Synchronous Motor ◽  
Torque Ripple ◽  
Synchronous Motor ◽  
Economic Benefits ◽  
Direct Drive ◽  
Low Speed ◽  
Wide Range ◽  
High Torque ◽  
Pumping Unit

To meet the demands of direct-drive petroleum equipment, developed a low-speed and high-torque permanent magnet synchronous motor. By analyzing and identifying the suitable key parameters such as permanent magnet structure parameters, air gap length, type and size of Stator Slot and so on, designed permanent magnet synchronous motor with the torque 10800 Nm, the rated speed 30 r/min and high efficiency and power factor. Obtained the flux density distribution situation and characteristic curves under no-load working condition through simulation and analysis. Manufactured the low-speed and high-torque permanent magnet synchronous motor and applied it to pumping unit. Test results show that this motor has many advantages such as wide range of speed regulation, small torque ripple, smooth operation and other characteristics. The Direct-drive Pumping Unit used this permanent magnet synchronous motor can save 20% energy than the beam pumping unit, so its social and economic benefits are significant.

scholarly journals Simulation and Experimental Verification of a HB-Type Vernier Motor

2013 ◽  
Vol 3 (1) ◽  
pp. 338-344
Author(s):  
R. H. Thejel ◽  
H. A. Hairik ◽  
M. A. Alwan
Keyword(s):  
Experimental Verification ◽  
Torque Ripple ◽  
Direct Drive ◽  
Matlab Simulation ◽  
Drive Circuit ◽  
High Torque ◽  
Simulation Results ◽  
Low Torque ◽  
Rotor Structure ◽  
Load Conditions

Direct drive motors are used as actuators in numerous applications in which they must rotate at low speeds with high torque and low torque ripple. Various types of vernier motors have been studied recently. The HB type vernier motor is one of them. Its rotor structure is the same as in a HB type stepping motor but has a field winding at the rotor and has multiphase windings in the stator. In the present work, a Matlab simulation of a HB type vernier motor is presented. To validate the motor results and response, the authors fabricated the motor and implemented its drive circuit. The motor was tested for different load conditions. Experimental results are found identical to simulation results and it is also shown that the motor has low torque ripple.

scholarly journals Permanent Magnet Motor Design for Satellite Attitude Control With High Torque Density and Low Torque Ripple

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 48587-48598
Author(s):  
Po-Huan Chou ◽  
Shih-Chin Yang ◽  
Ciao-Jhen Jhong ◽  
Jen-I Huang ◽  
Jyun-You Chen
Keyword(s):  
Permanent Magnet ◽  
Attitude Control ◽  
Torque Ripple ◽  
Permanent Magnet Motor ◽  
Torque Density ◽  
Satellite Attitude ◽  
Satellite Attitude Control ◽  
Motor Design ◽  
High Torque ◽  
Low Torque
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