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What is Control and Observation of Induction Motors Based on Full-Order Terminal Sliding-Mode Technique about?

This chapter proposes full-order terminal sliding-mode (FOTSM) based observation and control approaches for the sensorless speed control system of the induction motor (IM) with the full consideration of the unmatched uncertainties. The sensorless field orientation control (FOC) system for the IM is based on the accurately observing of the speed and the flux of the motor using the full-order terminal slidingmode observer (FOTSMO). With the feedback of the precise estimated speed/flux, the FOTSM based controllers for the speed-, flux-and current-loops are designed to strengthen the robustness, accuracy and rapidness of the FOC system for the IM. By means of the virtual control technique in the outer-loop, the unmatched uncertainties including the parameter perturbation and the external disturbance can be thoroughly compensated. The proposed adaptive gain avoids overestimating the upper bound of the uncertainties in the FOC system for the IM. Due to the integral-type control law, the current references are smoothed and the chattering in the conventional SMC is eliminated. In the inner-loop controllers, the actual voltage control signals can force the tracking errors of the currents to

Author

Minghao Zhou; Siwei Cheng; Wei Xu; Yong Feng; Hongyu Su

Publisher

Springer Singapore : Imprint: Springer

Published

2022

Language

EN

ISBN

9789811698552

Subjects

Science, Physics, Stem