Details

Autor(en) / Beteiligte

• Jiang, Wen
• Su, Yi Xin
• Zhang, Dan Hong

Titel

Research on Inverse Control of Active Magnetic Bearing Based on Fuzzy Inverse Model

Ist Teil von

• Applied Mechanics and Materials, 2014-06, Vol.575 (Materials Engineering and Automatic Control III), p.744-748

Ort / Verlag

Zurich: Trans Tech Publications Ltd

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• For magnetic bearing system with characteristics of zero damping, negative stiffness and nonlinearity, this paper put forward a method of inverse control based on the fuzzy inverse model. The fuzzy system with fuzzifier and defuzzifier was used as an interpolator to approximate the inverse model of magnetic bearing. Then we connected the fuzzy inverse model in series with the magnetic bearing system to form a generalized pseudo linear plant, and selected a PID controller to control the pseudo linear plant. The fuzzy inverse model and the PID controller together formed an inverse controller to implement the closed-loop inverse control of the system. The simulation results demonstrate that the inverse control can reduce the overshoot, shorten the settling time, and make the rotor levitate in a larger range.