Title :
Principle and implementation of radial disturbance feedforward compensation control for bearingless permanent magnet slice motors
Author_Institution :
Nanjing Inst. of Ind. Technol., Nanjing, China
Abstract :
In this paper a bearingless permanent magnet slice motor (BPMSM) is investigated and its levitation principle and mathematical model of levitation force are analyzed and deduced respectively. A extended state observer (ESO) of levitation system is established for observation of outer disturbance imposing on levitation system. Then, the observed disturbance is utilized to form compound control with the radial displacement PID by feedforward compensation. Finally, simulation and experiment results show the effectiveness of the proposed control strategy.
Keywords :
compensation; feedforward; machine control; magnetic levitation; observers; permanent magnet motors; three-term control; BPMSM; ESO; bearingless permanent magnet slice motors; compound control; extended state observer; feedforward compensation; levitation force; levitation principle; mathematical model; outer disturbance; radial displacement PID; radial disturbance feedforward compensation control; Feedforward neural networks; Force; Mathematical model; Observers; Permanent magnet motors; Rotors; Suspensions; bearingless slice motor; extended state observer; feedforward compensation; radial disturbance;
Conference_Titel :
Control Conference (CCC), 2014 33rd Chinese
Conference_Location :
Nanjing
DOI :
10.1109/ChiCC.2014.6896343
