Title :
Sensorless control of permanent magnet linear synchronous motor based on nonlinear observer
Author :
Limei, Wang ; Qingding, Guo
Author_Institution :
Sch. of Electr. Eng., Shenyang Univ. of Technol., China
Abstract :
This paper presents a sensorless control method, which can estimate the stator magnetic pole position and mover speed by detecting the voltage and current of permanent magnet linear synchronous motor based on non-linear observer. The H∞ control theory is used to guarantee good performance at low speed. A two-degree-of-freedom controller is obtained by solving model-matching problem. Simulation results show that the system can satisfy the servo requirement of tracking and disturbance suppressing in a wide speed range.
Keywords :
H∞ control; control system synthesis; linear synchronous motors; machine control; nonlinear control systems; observers; permanent magnet motors; H∞ control theory; disturbance suppression; model matching problem; mover speed estimation; nonlinear observer; permanent magnet linear synchronous motor; sensorless control; stator magnetic pole position; tracking; two degrees of freedom controller; Control theory; Costs; Mechanical sensors; Nonlinear equations; Observers; Optical control; Sensorless control; Servomechanisms; Stators; Synchronous motors;
Conference_Titel :
Advanced Motion Control, 2004. AMC '04. The 8th IEEE International Workshop on
Print_ISBN :
0-7803-8300-1
DOI :
10.1109/AMC.2004.1297940
