Bovkunovich V. Indirect field oriented control of induction motor with the properties of robustness and adaptation to changes of the rotor resistance

Research object - process control electromechanical energy conversion system in vector-controlled induction drive. The aim - development of methods for the synthesis of indirect vector control for induction motors, aimed at improving the performance of dynamic properties and energy efficiency electromechanical systems by providing them with the properties of robustness and adaptation in relation to the variation of resistance rotor circuit. Methods and apparatus - the second Lyapunov method, measured by the output control, adaptive systems theory, mathematical modeling and experimental studies. Theoretical and practical results - a system of robust and adaptive vector control of IM provides robust (adaptive) stabilization of the flux vector, which ensures the stabilization of dynamic quality control and additional reduction of active power losses in IM when exposed to parametric disturbances is proposed methodology study the properties of robustness algorithms for vector control IM to parametric perturbations in the steady state, analytical dependences of error control moment and module flux vector based on the variation of resistance of the rotor, set up the software to implement the proposed vector control algorithms that can be used in designing electromechanical systems based on IM with high demands on the dynamic characteristics and indicators of energy efficiency. Novelty - A method of synthesis of indirect vector control algorithms that can effectively construct a feedback subsystem flow to achieve stabilization system, the formation of its dynamic properties and further reducing the sensitivity to variations in the parameters of the rotary circle, developed a new system structure robust indirect vector control, which guarantees global robust asymptotic testing the set point and trajectory module rotor flux vector by forming stabilizing feedback for errors of estimation of stator currents, first developed a method for the study of robustness algorithms for indirect vector control torque and flux of induction motors in relation to the basic parametric perturbations - change of resistance rotor, theoretically grounded framework for corrective ties adaptive observer, which guarantees local asymptotic exponential rotor flux linkage vector estimation and identification of resistance of the rotor, first analytically prove the legality of the use of non-linear separation principle in the design of adaptive vector control of IM. The degree of implementation - State Enterprise "Scientific-Research and Design-Technological Institute of Municipal Economy" (Kyiv), CJSC Ural electrical company "Canopus" (Zlatoust, Russia). Areas of use - electric transport.