DocumentCode :
2343283
Title :
Nonlinear control of a pressurised water supply driven by a permanent magnet synchronous motor
Author :
Aschemann, Harald ; Rauh, Andreas ; Prabel, Robert
Author_Institution :
Mechatron., Univ. of Rostock, Rostock, Germany
fYear :
2010
fDate :
23-26 Aug. 2010
Firstpage :
423
Lastpage :
428
Abstract :
In this paper, a flatness-based multivariable control of a permanent magnet synchronous motor (PMSM) as the main drive of a pressurised water supply system is presented. The fluidic subsystem consists of a pump and a storage volume connected to the high pressure side. The pump has to provide the supply volume flow into the storage volume, whereas the drain volume flow is considered as a disturbance. Based on a nonlinear mathematical model of the PMSM in a rotor-fixed coordinate system and the attached fluidic system, a nonlinear tracking control strategy is proposed. Here, the differential flatness of the model with the d-current of the rotor and the storage pressure as flat outputs can be exploited to derive a combined feedforward and feedback control strategy. The coupling torque between the PMSM and the pump follows from an analysis of the fluidic circuit. The disturbance torque acting on the pump is determined by a nonlinear reduced-order observer and can be used in a compensation strategy to improve the tracking behaviour of the electric drive. Simulations point out the effectiveness and the excellent tracking properties of the proposed control structure.
Keywords :
feedback; feedforward; mathematical analysis; multivariable control systems; nonlinear control systems; permanent magnet motors; pumps; rotors; synchronous motors; water supply; coupling torque; disturbance torque; feedback control; feedforward control; flatness-based multivariable control; fluidic subsystem; fluidic system; nonlinear mathematical model; nonlinear reduced-order observer; nonlinear tracking control; permanent magnet synchronous motor; pressurised water supply system; pump; rotor-fixed coordinate system; storage pressure; Angular velocity; Equations; Mathematical model; Observers; Rotors; Stators; Torque;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Methods and Models in Automation and Robotics (MMAR), 2010 15th International Conference on
Conference_Location :
Miedzyzdroje
Print_ISBN :
978-1-4244-7828-6
Type :
conf
DOI :
10.1109/MMAR.2010.5587196
Filename :
5587196
Link To Document :
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