Title :
Auto-compensation of torque ripple of DD motor by torque observer
Author :
Matsui, Nobuyuki ; Makino, Tatsuo ; Satoh, Hirokazu
Author_Institution :
Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan
fDate :
Sept. 28 1991-Oct. 4 1991
Abstract :
A torque control system for DDM (direct drive motor) with a permanent magnet rotor equipped with a torque observer implemented by software of a digital signal processor is proposed. The speed fluctuation against a disturbance can be fully removed with a torque feedforward loop. It is shown that the direct motor control system with a torque observer gives a superior speed control characteristics. Furthermore, the system has a robustness against disturbing torque and a variation of mechanical parameters.<>
Keywords :
electric drives; machine control; permanent magnet motors; rotors; torque control; velocity control; DDM; auto-compensation; direct drive motor; mechanical parameters; permanent magnet rotor; speed control characteristics; speed fluctuation; torque control system; torque feedforward loop; torque observer; torque ripple; Distributed decision making; Gears; Machine tools; Permanent magnet motors; Robots; Servomotors; Shafts; Testing; Torque control; Velocity control;
Conference_Titel :
Industry Applications Society Annual Meeting, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Dearborn, MI, USA
Print_ISBN :
0-7803-0453-5
DOI :
10.1109/IAS.1991.178171
