Konoplinskyi M. Adaptive vector control of induction motors on variations of stator and rotor resistances

The generalized method of design algorithm for simultaneous identification of stator and rotor resistance of IM, which is simpler than the known theoretically informed decisions for next operating modes of IM: for fixed rotor IM; for constant angular speed of the rotor IM; for arbitrary angular speed of the rotor IM. Discovered previously unknown properties of the vector control algorithm robust to variations rotor resistance, which are as robustness to variations stator resistance and is a prerequisite for the creation of vector control, adaptive to simultaneous variations of these parameters. General theoretical problem indirect vector control magnetic flux and angular speed (torque) IM responsive to simultaneous variations of stator and rotor resistances based on identification algorithm synthesized without restrictions on operation mode are solved. Based on the identification algorithm synthesized without saturation on operation mode, general theoretical problem solved responsive to simultaneous variations of resistances stator and rotor indirect vector control magnetic flux and angular velocity (torque) of IM. Advantages of the developed adaptive system compared to known adaptive rotor resistance system that are improving dynamic and energy performance in conditions of parametric perturbations. This was confirmed on the basis of full-scale experimental studies and mathematical modeling.