Adaptive Nonsingular Fast Terminal Sliding Mode Control for Permanent Magnet Linear Synchronous Motor Based on Flux Observer
Aiming at the position sensor-less control system of permanent magnet linear synchronous motor(PMLSM)applied to electromagnetic catapults,which is susceptible to uncertain factors such as parameter variations,this paper proposes a combined control system combining flux observer with adap-tive non-singular fast terminal sliding mode control(ANFTSMC).This combined control system tar-gets the PMLSM containing uncertain parameters,designs the flux observer to calculate the position and velocity information of the motorized motor in real time to ensure that the control system can quick-ly obtain the accurate operating parameters,and utilize the characteristics of ANFTSMC adjust the con-vergence speed of the system adaptively to suppress the influence of uncertain factors,improve the re-sponse speed of the system,and avoid the singularity problem that occurs in the terminal sliding mode control.It is verified through simulation and analysis that the control system can reduce the jitter while guaranteeing the tracking accuracy and response speed,and realize the fast and smooth operation of PMLSM without position sensor,and the control system can meet the requirements of the engineering application of electromagnetic catapult.
permanent magnet linear synchronous motorelectromagnetic catapultadaptive controlnonsingular fast terminal sliding mode controlflux observer
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维普
