Kunchenko T. Parametric optimization of conditionally stable electromechanical systems via control quality diagram technique

Research subject: electromechanical processes in multi-integrated conditional stable systems and governor parameters impact which are optimized by using of control quality diagrams (CQD). Research objective: control process parametric optimization of multi-integrated conditional stable electromechanical systems (EMS) by control quality diagrams method. Research methods: the automatic electric drive theory and automatic control theory; mathematical modeling; parametric optimization methods and the least squares method; MATLAB simulation. Theoretical and practical results: existence of optimum solutions for conditional stable EMS control on the basis of a control quality complex criteria - a maxima of Q factor and stability factor (MQS) is defined; systems CQD construction and analysis computer procedures in time and frequency areas are developed on which the high Q factor and stability factor (HQS) areas are marked; parametric optimization by MQS criterion of various conditional stable EMS with series and parallel compensation taking into account control subject structure, including in its composition non-minimum-phase links are completed; the possibility of systems Q factor magnification within 20% and stability factor magnification on 10% at Q factor preset is proved. Scientific novelty: for the first time the conditional stable EMS parametric optimization method on the basis of mini-max criterion and the MQS is developed that has allowed to increase control accuracy in comparison with existing systems with typical governors; a synthesis method of multi-channel iterative systems with typical governors in separate channels and the condition observer in the second channel has gained the further development that has allowed to increase control accuracy of multi-channel iterative systems in comparison with existing systems; the approach to use a MQS control quality complex criteria on a basis of CQD computer design is developed that has allowed to automate conditional stable EMS synthesis process. Areas of use: results are transferred for introduction in Institute of Electrophysics & Radiation Technologies National Academy of Sciences of Ukraine; PJSC "Tjazshpromavtomatika"; in educational process of chair Automated Electromechanical Systems NTU "KhPI".