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This paper proposes a rotor flux estimation method based on high-order sliding mode and non-singular terminal sliding mode method for realizing field orientation control of an induction motor. A nonsingular terminal sliding mode control is utilized to improve the response speed and tracking precision of the observer. Meanwhile, high-order sliding mode technique is adopted to eliminate the chattering...
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...
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