Title :
Reduction of motor speed fluctuation using repetitive control
Author :
Kobayashi, F. ; Hara, S. ; Tanaka, H.
Author_Institution :
Fac. of Comput. Sci. & Syst. Eng., Kyushu Inst. of Technol., Iizuka, Japan
Abstract :
Repetitive control can be used to eliminate the influence of periodical disturbance. The authors describe an attempt to reduce fluctuation in motor speed, which is usually periodical, by detecting the instantaneous speed with a spatial filter and by feeding back the sensor output through a repetitive controller. A design procedure with two independent steps for speed regulation and fluctuation reduction is proposed. A method of stabilization using sampler and phase-lead compensation is also developed, as well as time-delay synchronization by a phase-locked loop. An experimental setup indicated reduction of speed fluctuation down to a level of 1/5
Keywords :
DC motors; control system synthesis; machine control; phase-locked loops; servomotors; stability; velocity control; 80 W; fluctuation reduction; motor speed fluctuation; periodical disturbance; phase-lead compensation; phase-locked loop; repetitive control; sampler; spatial filter; speed regulation; stabilization; time-delay synchronization; Computer science; Control systems; Filters; Fluctuations; Frequency; Phase locked loops; Sampling methods; Servomotors; Torque; Tracking loops;
Conference_Titel :
Decision and Control, 1990., Proceedings of the 29th IEEE Conference on
Conference_Location :
Honolulu, HI
DOI :
10.1109/CDC.1990.203910
