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Information × Registration Number 0224U000238, 0121U110719 , R & D reports Title Mathematical modeling of electric circuits and electrotechnical systems with lumped and distributed parameters popup.stage_title Head Hoholiuk Oksana P., Доктор технічних наук Registration Date 04-01-2024 Organization Lviv Polytechnic National University popup.description2 The problem of improving and applying methods for constructing mathematical models, electrical circuits, electrical systems and devices with lumped and distributed parameters to improve the quality of analysis of their dynamic modes and processes was solved. The current state of energy consumption forecasting is analyzed, and it is proposed to use an autonomous macromodeling approach to build mathematical models of load forecasting based on the Rastrygin guide cone method. The approaches to modeling induction motors have been improved, and a model for calculating their steady-state modes has been created by solving the problem as a boundary value problem for the system of electromagnetic equilibrium of motor circuits. Calculation algorithms have been proposed that allow mathematical modeling methods to analyze the transient processes and static characteristics of induction motors with a phase rotor with regard to saturation in order to determine the resistance of the starting rheostat to ensure the required law of change of electromagnetic torque. The methods and algorithms for analyzing the operation of squirrel-cage induction motors with regard to saturation and displacement of currents in the rotor cores under different laws of cyclic-variable load are developed Mathematical models for analyzing the group starting modes of squirrel-cage motors based on the differential equations of electromechanical equilibrium written in the d-q axes and the method of calculating static characteristics are proposed. Mathematical models for designing and studying the modes of devices based on the use of magnetic circuits with inductors with magnetic connections are developed. The criteria for predicting the stability of the computational process in the calculation of electrical systems are determined. A block diagram of the system of technical diagnostics of overhead lines based on UAVs has been developed, which allows implementing procedures for functional diagnostics of it. Product Description popup.authors Vasylchyshyn Ivanna I Orest Hamola Horiachko Vsevolod Korud Vasyl Maday Volodymyr Malanchak Olha R Malyar Vasyl Rendzinyak Serhiy Yo Ryzyi Taras-Oleh Samoilova Svitlana H Stakhiv Petro popup.nrat_date 2024-01-04 Close