Torque control for DC servo motor using adaptive load torque compensation

Authors:
Chanyut Khajorntraidet;Jiraphon Srisertpol
Affiliations:
School of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand;School of Mechanical Engineering, Institute of Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand
Venue:
ICOSSSE'10 Proceedings of the 9th WSEAS international conference on System science and simulation in engineering
Year:
2010

Citing 2
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Abstract

A torque control system is an important process in industries. The value of torque which is generated by DC servomotor depends upon a motor current. Since the torque control system uses the estimated current from an observer, it will receive an effect from torque disturbance (load torque) during an operation. The incorrect estimated current from the observer affects a current feedback signal. This paper presents a technique for torque control of DC servomotor by using adaptive load torque compensation. The load torque can be compensated to the observer, the result show that the estimated current error from the observer is reduced. Therefore, this method can be applied to improve an efficiency of the torque control system and estimate the load torque of DC servomotor.