PROBLEM OF ADEQUATE ANALYSIS OF PSS MOTOR LOAD NODE STABILITY, ITS PROVISION CONDITIONS AND SOLUTION TOOLS

PURPOSE. A justification is given to the need to increase the completeness and reliability of the analysis of operation stability of synchronous and induction motors (SM and IM) of power supply system (PSS) load nodes and its provision conditions which to a considerable extent determine the efficiency and often operation safety of large industrial enterprises. The purpose of the paper is to develop the methods and tools for reliable real-time simulation in an unlimited interval of the continuous spectrum of normal and abnormal quasi-steady and transient processes in SM, IM, PSS, and in the electric power system (EPS) as a whole that ensures the adequacy of the above analysis corresponding to real conditions. METHODS. The study uses the following methods of scientific research: mathematical and physical simulation, the theory of discretization methods for ordinary differential equations, methodologically accurate parallel implicit continuous integration of differential equations, circuit technology based on integrated microelectronics and microprocessor technology, and IT technology. RESULTS. The paper has revealed and justified the causes of the problem of adequate analysis of the motor load node stability and its provision conditions related to the applicability conditions of the methods of numerical integration of differential equations of mathematical models. To solve this problem a concept has been developed based on a complex approach that provides sufficiently complete and reliable information about the continuous spectrum of normal and abnormal quasi-steady and transient processes occurring in SM, IM, PSS, and EPS as a whole. CONCLUSION. Developed tools enable experimental researches necessary for the adequate analysis of the operation stability of synchronous and induction motors of PSS load nodes and the conditions for its provision.

synchronous and induction motors (SM and IM), power supply system (PSS), stability of motor load nodes, mathematical simulation, adequacy, reliability

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