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This paper proposes an adaptive integral backstepping hybrid terminal sliding-mode control for permanent magnet synchronous motors (PMSMs). The adaptive integral backstepping method based on the implicit Lyapunov function is utilized to design the position controller of a PMSM system, which can compensate the parameter uncertainties and the load disturbance of the system. The current controller of...
ased on yapounov stability theorem, an adaptive controller is proposed for speed tracking control of permanent magnet synchronous motor (PMSM). The design of the adaptive gain is used to tackle the disturbance. The simulation results show that the design scheme of the PMSM is robust against perturbation and the asymptotical stability of the speed tracking error can be achieved.
This study presents a novel means of designing a simple and effective torque control for Permanent Magnet Synchronous Motor (PMSM). The overall stability of the system is shown using Lyapunov technique. The Lyapunov functions used contain a term penalizing incremental energy of control error, torque and stator flux, enhancing the stability. A new logical FPGA torque controller and flux observer based...
In this study, adaptive tracking control (ATC) is presented for a toggle mechanism of electric injection molding machines in the presence of uncertainties and disturbances during closing operations. The controls are developed based on mathematical knowledge of the toggle mechanism and the permanent magnet synchronous motor (PMSM). The proposed controls are robust not only to parametric uncertainties...
Nonlinear adaptive speed and d-axis current control schemes based on adaptive state feedback and backstepping technique are proposed for a permanent magnet synchronous motor (PMSM). In the controller design, adaptive state feedback and backstepping control approach using the parameter dependant Lyapunov function is adopted to derive the control scheme, which is robust to the all parameter uncertainties...
This paper presents the design of a fuzzy logic sliding mode controller to control a permanent magnet synchronous motor. Fuzzy logic is introduced to the system to solve the chattering problem associated with sliding mode controllers. Based on the proposed switching surface, a switching control law that satisfies the hitting condition and guarantees the existence of the sliding mode is designed using...
This paper describes the application of indirect adaptive fuzzy control to the speed controller of permanent magnet synchronous motor (PMSM) under external load disturbances and parameter variations in the plant. The proposed indirect adaptive fuzzy speed controller is based on feedback linearization and its parameters are updated by both speed tracking error and filtered prediction error, designed...
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