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This paper presents the cascaded PI-continuous second order sliding mode control for induction motor in the presence of operational constraints. The inner-loop Sliding Mode Control (SMC) is designed to control the current dynamics of the motor while the outer-loop control is the PI control of speed. The main advantages of the proposed method are that the PI control provides reference to inner-loop...
This paper proposes a gain margin technique based continuous sliding-mode control method for position servo systems of induction motors. A systematic design method for position and current controllers is developed to implement the robust control of induction motors in the field orientation control system. In the proposed controllers design, the boundaries of disturbances and parameter perturbations...
This paper proposes a nonsingular terminal sliding-mode control method for induction motors. Based on the mathematical model of induction motors and the field orientation control principle, the closed-loop speed control system of IMs are designed. The controllers for speed, flux, and currents of an induction motor are designed respectively using nonsingular terminal sliding-mode control technique...
This paper proposes a high-order nonsingular terminal sliding-mode observer based sensorless field oriented control for induction motors. A nonsingular terminal sliding-mode manifold is designed for the observer and the related control strategies are applied to stabilize the whole motor system. The designed high-order sliding-mode control laws guarantee the strong robustness of the motor system and...
This paper proposes a high-order sliding-mode control method for grid-connected converter of an induction motor (IM) system, implementing the regenerative energy feedback with high quality and achieving the energy-saving operation of an IM system. A nonsingular terminal sliding-mode manifold is designed for the two current controllers and the related control strategies are applied to stabilize the...
This paper proposes a high-order nonsingular terminal sliding mode control method for induction motor velocity servo systems. Based on the vector control principle, high-order nonsingular terminal sliding mode controllers in velocity loop, current loop and flux loop are designed respectively. The nonsingular terminal sliding mode control is utilized to improve the response speed and robustness of...
This paper proposes an observer based on the nonsingular terminal sliding mode (NTSM) method and the high-order sliding mode (HOSM) method for estimating the rotor speed and the rotor flux in the induction motor control system. A terminal sliding mode observer is designed to estimate the rotor speed and the rotor flux of the motor system with fast convergence and better tracking precision. A high-order...
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