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Proceedings Paper

Development of magneto-rheologial fluid (MRF) based clutch for output torque control of AC motors
Author(s): Q. Hung Nguyen; H. M. Hieu Do; V. Quoc Nguyen; N. Diep Nguyen; D. Thang Le
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Paper Abstract

In industry, the AC motor is widely used because of low price, power availability, low cost maintenance. The main disadvantages of AC motors compared to DC motors are difficulty in speed and torque control, requiring expensive controllers with complex control algorithms. This is the basic limitations in the widespread adoption of AC motor systems for industrial automation. One feasible solution for AC motor control is using MRF (magneto-rheological fluid) based clutches (shortly called MR clutches) Although there have been many studies on MR clutches, most of these clutches used traditional configuration with coils wound on the middle cylindrical part and a compotator is used to supply power to the coils. Therefore, this type of MR clutches possesses many disadvantages such as high friction and unstable applied current due to commutator, complex structure which causes difficulty in manufacture, assembly, and maintenance. In addition, the bottleneck problem of magnetic field is also a challenging issue. In this research, we will develop a new type of MR clutches that overcomes the abovementioned disadvantages of traditional MR clutches and more suitable for application in controlling of AC motor. Besides, in this study, speed and torque control system for AC motors using developed MR clutches is designed and experimental validated.

Paper Details

Date Published: 27 March 2018
PDF: 6 pages
Proc. SPIE 10602, Smart Structures and NDE for Industry 4.0, 106020J (27 March 2018); doi: 10.1117/12.2297339
Show Author Affiliations
Q. Hung Nguyen, Vietnamese-German Univ. (Viet Nam)
H. M. Hieu Do, Vietnamese-German Univ. (Viet Nam)
V. Quoc Nguyen, Ho Chi Minh Univ. of Industry (Viet Nam)
N. Diep Nguyen, Ho Chi Minh Univ. of Industry (Viet Nam)
D. Thang Le, Vietnamese-German Univ. (Viet Nam)

Published in SPIE Proceedings Vol. 10602:
Smart Structures and NDE for Industry 4.0
Norbert G. Meyendorf; Dan J. Clingman, Editor(s)

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