Title :
Decoupling control of 5 degree-of-freedom bearingless permanent magnet synchronous motor based on α-th order inverse system method
Author :
Fei, Decheng ; Zhu, Huangqiu ; Sun, Yukun
Author_Institution :
Sch. of Electr. & Inf. Eng., Jiangsu Univ., China
Abstract :
A decoupling control method based on α-th order inverse system method has been developed for the innovative 5 degree-of-freedom (DOF) bearingless permanent magnet synchronous motor (BPMSM), which is multi-variable, nonlinear and coupling system. Firstly, the innovative 5 DOF BPMSM is briefly introduced; Secondly, the state equations of the innovative 5 DOF BPMSM are set up. Then feasibility of decoupling control based on α-th order inverse system method for the innovative 5 DOF BPMSM is discussed in detail, and the dynamic decoupling control algorithm based on inverse system is also deduced. Finally, the simulation results have shown that this kind of control strategy can realize dynamic decoupling control between torque force and radial suspension forces, and the whole control system has good dynamic and static performance.
Keywords :
force control; machine control; matrix algebra; multivariable systems; nonlinear control systems; permanent magnet motors; synchronous motors; torque control; α-th order inverse system method; 5 degree-of-freedom bearingless permanent magnet synchronous motor; coupling system; decoupling control; multivariable system; nonlinear system; radial suspension forces; torque force; Control system synthesis; Control systems; Couplings; Force control; Heuristic algorithms; Nonlinear control systems; Nonlinear dynamical systems; Nonlinear equations; Permanent magnet motors; Torque control;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202534
