Comparative Analysis of Determining the Service Life of Powerful Asynchronous Motors Insulation by Analytical Methods and Using the ANSYS MotorCAD Software Environment
DOI:
https://doi.org/10.33042/2079-424X.2024.63.3.01Keywords:
Asynchronous Motor, High-Voltage Insulation Systems, Heat Resistance Class, Service LifeAbstract
The paper presents the mathematical justification and selection of aging models of the electrical insulation of the stator winding of the VAZ 215/109-6АМО5 electric motor, which ensures the operation of the main circulation pump GTsN-195 of the first cooling circuit of the VVER-1000 nuclear reactor. There are 13 power units with VVER type reactors in operation in Ukraine are important elements of the national energy system. The relevance of the research lies in the need to ensure the reliability and safety of the operation of critically important systems, such as the cooling of nuclear reactors. The selection of adequate insulation aging models is key to predicting the service life of an electric motor and preventing possible emergency situations. The use of mathematical models makes it possible to assess the influence of these factors on insulation degradation, which, in turn, contributes to the development of recommendations for improving the reliability of electric motors. The study includes a comparison of analytical methods for calculating the aging of electrical insulation and methods performed using the simulation of an electric motor in the software product ANSYS MotorCAD. ANSYS MotorCAD is a specialized software for the design of electrical machines, which allows for fast Multiphysics simulations in a wide range. One of the key functions of this software is the simulation of thermal processes, which is critical for evaluating the efficiency and reliability of electric machines. Computer simulation of the operation modes of insulation of powerful asynchronous motors will allow determining the service life of electrical insulation and significantly speed up the process of designing insulation systems. The results of the comparative analysis can serve as a basis for further research aimed at improving production technologies and increasing the reliability of materials. This approach also lays the foundation for the development of insulation systems in electric motors in general, which is critical to ensure their efficiency and safety.
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