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NON-LINEAR FUZZY LOGIC CONTROL FOR FORCED LARGE MOTIONS OF SPINNING SHAFTS

✍ Scribed by SHULIANG LEI; ALAN PALAZZOLO; UHNJOO NA; ALBERT KASCAK


Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
310 KB
Volume
235
Category
Article
ISSN
0022-460X

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✦ Synopsis


A unique control approach is developed for prescribed large motion control using magnetic bearings in a proposed active stall control test rig. A "nite element based, #exible shaft is modeled in a closed loop system with PD controllers that generate the control signals to support and to shake the rotor shaft. A linearized force model of the stall rig with 16 magnetic poles (4 opposing C-cores) yields stability and frequency responses. The non-linear model retains the non-linearities in Ampere's law, Faraday's law and the Maxwell stress tensor. A fuzzy logic control system is then designed to show the advantages over the conventional controllers with the fully non-linear model.

2000 Academic Press

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