Title :
Precise and robust control of Permanent magnet linear synchronous motor in a high-speed feeding system
Author :
Xu, Yuetong ; Fu, Jianzhong ; Chen, Zichen
Author_Institution :
Inst. of Adv. Manuf. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
Electromagnetic thrust and the dynamic equation were obtained by analyzing the characteristics of Permanent magnet linear synchronous motors (PMLSM) with fraction slot. Then the optimal weights were selected and a mixed-sensitivity H∞ velocity controller was designed according to the model uncertainties and disturbances in the feeding system. The velocity control system was developed by compensating the nonlinear friction and horizon force caused by the normal force of PMLSM and designing a disturbance observer. Simulations and experiments demonstrated that the response of the system was rapid and the tracking error was small. It also demonstrated that the PMLSM ran reliably and precisely. So the designed velocity system is satisfactory and realizable.
Keywords :
H∞ control; angular velocity control; compensation; control system synthesis; friction; grinding machines; linear synchronous motors; machine control; permanent magnet motors; robust control; H∞ velocity controller; disturbance observer design; dynamic equation; electromagnetic thrust; grinding machines; high speed feeding system; horizon force compensation; model disturbances; model uncertainties; nonlinear friction compensation; permanent magnet linear synchronous motor; robust control; tracking error; velocity control system; Electromagnetic analysis; Equations; Friction; Magnetic analysis; Optimal control; Radio access networks; Robust control; Synchronous motors; Uncertainty; Velocity control;
Conference_Titel :
Intelligent Control and Automation, 2004. WCICA 2004. Fifth World Congress on
Print_ISBN :
0-7803-8273-0
DOI :
10.1109/WCICA.2004.1342371
