Title :
Sliding mode control of PMSM based on robust differentiator
Author_Institution :
Dept. of Mech. & Electron., Jiangsu Teachers Univ. of Technol., Changzhou, China
Abstract :
In order to realize high speed and high precision position control of some rocket launcher servo system, aimed at all kinds of uncertainties such as widely changing moment of inertia and load moment, and strong impact moment, super-twisting algorithm is introduced to design speed controller and current controller. In order to guarantee mover speed to track its reference signal strictly when the system bears parameter variation and external disturbance, the speed sliding mode and direct axis current sliding mode are selected respectively. In the end, simulation is carried out to verify that this control algorithm has strong robustness to load variation and parameter change, and decreases chattering phenomenon effectively. This controller can improve control performance of the servo system and therefore has much practical meaning.
Keywords :
control system synthesis; electric current control; machine control; permanent magnet motors; position control; servomechanisms; synchronous motors; variable structure systems; PMSM; current controller; direct axis current sliding mode; external disturbance; high precision position control; high speed position control; load moment; parameter variation; robust differentiator; rocket launcher servo system; sliding mode control; speed controller design; strong impact moment; super twisting algorithm; Robustness; Shafts; PMSM; SMC; differentiator; robust;
Conference_Titel :
Computational Intelligence and Natural Computing Proceedings (CINC), 2010 Second International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7705-0
DOI :
10.1109/CINC.2010.5643897
