Exact model identification for magnetic suspension system via magnetic field measurement

Author

Lin, C.E. ; Jou, H.L. ; Sheu, Y.R., Sr.

Author_Institution

Inst. of Aeronaut. & Astronaut., Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

1992

fDate

12-14 May 1992

Firstpage

269

Lastpage

274

Abstract

In magnetic suspension analysis, a simplified model of the current-to-distance relationship is not sufficient to design an optimal controller. Due to the nonlinearity of the magnetic field, an accurate model is difficult to obtain. The authors present an improved model identification method for a magnetic suspension system so as to establish reliable and exact parameters to describe the dynamic motion characteristic. The parameter for each test sample can be calculated under the specified operating conditions after some magnetic field measurements. The results lead to an optimal controller design for magnetic suspension systems

Keywords

control system synthesis; identification; magnetic field measurement; magnetic fluids; optimal control; current-to-distance relationship; dynamic motion characteristic; force model; magnetic field measurement; magnetic suspension; model identification; nonlinearity; optimal controller; Coils; Iron; Magnetic analysis; Magnetic circuits; Magnetic field measurement; Magnetic flux; Magnetic flux density; Magnetic forces; Magnetic levitation; Magnetic materials;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1992. IMTC '92., 9th IEEE

Conference_Location

Metropolitan, NY

Print_ISBN

0-7803-0640-6

Type

conf

DOI

10.1109/IMTC.1992.245135

Filename

245135