The single closed-loop direct control of levitation force for bearingless permanent magnet synchronous motor

Author

Ding, Qiang

Author_Institution

Electr. & Electron. Eng. Coll., Nanjing Inst. of Ind. Technol., Nanjing, China

fYear

2011

fDate

15-17 July 2011

Firstpage

6269

Lastpage

6271

Abstract

In this paper the polar-coordinate mathematical model of levitation force on bearingless permanent-magnet synchronous motor was deduced. The single closed-loop direct control of levitation force was proposed based on the mathematical model deduction and combined with space vector pulse with modulation algorithm. The traditional closed-loop control of levitation current was ignored using the single closed-loop direct control algorithm. The whole levitation control system was simplified. The simulation results show the proposed control strategy can enhance system dynamic performance and achieve stable levitation under rated speed condition.

Keywords

closed loop systems; machine control; magnetic levitation; magnetic variables control; permanent magnet motors; pulse width modulation; synchronous motors; bearingless permanent magnet synchronous motor; levitation control system; levitation current; levitation force; mathematical model deduction; polar-coordinate mathematical model; single closed-loop direct control algorithm; space vector pulse width modulation algorithm; Force; Magnetic analysis; Magnetic levitation; Permanent magnet motors; Saturation magnetization; Synchronous motors; bearingless permanent magnet synchronous motor; direct control; levitation force; single closed loop;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988472

Filename

5988472