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This paper proposes an observer based method for estimating the mechanical parameters of permanent magnet synchronous motor (PMSM) used for complex mechanical systems. A terminal sliding mode observer is designed and the equivalent control principle is utilized to estimate the mechanical parameters of a motor system. The robustness of the estimation can be guaranteed using the sliding mode control...
This paper proposes a hybrid terminal sliding-mode observer based on the nonsingular terminal sliding-mode (NTSM) and the high-order sliding-mode (HOSM) for the rotor position and speed estimation in the permanent-magnet synchronous motor control system. An NTSM manifold is utilized to realize both fast convergence and better tracking precision. In addition, a derivative estimator is used to obtain...
This paper proposes a mechanical resonance suppressing method based on high-order sliding mode and non-singular terminal sliding mode for servo system. Non-singular terminal sliding mode manifolds are designed for load speed and stator currents of the permanent magnet synchronous motor to realize both fast convergence and better tracking precision. A state observer is utilized to estimate the shaft...
This paper proposes a hybrid terminal sliding mode observer based on the nonsingular terminal sliding mode and the high-order sliding mode for the rotor position and speed estimation in the permanent magnet synchronous motor control system. A nonsingular terminal sliding mode manifold is utilized to realize both fast convergence and better tracking precision. Meanwhile, a high-order sliding mode control...
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