期刊
ENERGIES
卷 14, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/en14082056
关键词
thermal processes; asynchronous motors; motor protection; motor thermal model; induction motors
Thermal analysis is crucial in electric motor design to optimize performance and prevent failures. Experimental results suggest that classic single-exponential models may not accurately capture the dynamically changing thermal processes in electric motors, especially during intermittent operation.
The exact nature of thermal processes occurring in an electric motor is often unknown. Thus, the estimation of temperature rise using mathematical models and computational experiments is becoming increasingly important. Thermal analysis is the key design aspect, which has become significant in the design process for electric motors. The thermal analysis of electric motors can be helpful in developing effective thermal monitoring methods. This analysis is crucial for a better understanding of the overall performance and failure prevention for these electrical motors. In this paper, laboratory investigations of thermal processes in low-voltage asynchronous motors are described. The analysis of the results leads to the conclusion that the classic single-exponential models do not match the dynamically changing thermal processes in electric motors especially in the case of intermittent motor operation.
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