Abstract: To control the induction motor stably under the condition of uncertain disturbances，an induction

motor speed control method based on robust sliding mode control and field oriented control was proposed based on switching gain adaptive technology. By introducing the switch adaptive gain and integrator interpolation into the speed and flux sliding mode controller，the same robustness and dynamic performance as the traditional sliding mode control algorithm were guaranteed，and the stator voltage chattering phenomenon was effectively suppressed. Moreover，the proposed control method was insensitive to load torque variation and electrical parameter uncertainty. Finally，the proposed control method was verified by simulation and physical experiments. The results show that the proposed controlmethod can track the reference signal accurately and quickly，and has good robustness.

      Key words: induction motor（IM）；adaptive switching gain；field oriented control；sliding mode control；

uncertainty