Title :
Applying Observer Feedback in Motor Control
Author :
Zhi-ying, Huan ; Hong-wen, Li
Author_Institution :
Changchun Inst. of Opt., Fine Mech. & Phys., Chinese Acad. of Sci., Changchun, China
Abstract :
When the speed is low or the encoder has a low precision, speed measured by backward difference method has obvious truncation error. This will arise ripple in the control system speed response. Speed filtering can decrease the ripple, but it´s not good enough, and it also induces lag. A speed feedback method based on all-state observer was introduced to improve the speed feedback performance. Experiment results show that, compared to filtering method, the control system performance is improved.
Keywords :
feedback; filtering theory; machine control; observers; velocity measurement; backward difference method; control system speed response; motor control; observer feedback; speed feedback method; speed filtering; speed measurement; truncation error; Control systems; Filtering; Mathematical model; Motor drives; Observers; System performance; Transfer functions; Motor Control; Speed Measurement; State Observer;
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.148
