Title :
The single closed-loop direct control of levitation force for bearingless permanent magnet synchronous motor
Author_Institution :
Electr. & Electron. Eng. Coll., Nanjing Inst. of Ind. Technol., Nanjing, China
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;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on
Conference_Location :
Hohhot
Print_ISBN :
978-1-4244-9436-1
DOI :
10.1109/MACE.2011.5988472
