The present study investigates temperature distribution and heat transfer characteristics of synchronous generators to attain more efficient design and better cooling performance by using thermal network analysis and CFD. Under all circumstances, the temperature of rotor and stator windings must be kept below the maximum permissible temperature of insulations to maintain reliability and prolong durability of a machine. In this paper, the temperature rise of rotor winding, stator winding, and associated end-winding was calculated for some generators in a range of machine sizes. The temperature rise of the coolant at discrete points in its flow path was also predicted. Finally, the calculation results were compared with real test results. From the comparison, it was found that there was a good agreement between the analytical calculations and the experimental results.
Analytical and Experimental Analysis of Temperature Distribution in Synchronous Generators
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Shin, S, Song, Y, Lee, D, Seol, S, & Lazar, G. "Analytical and Experimental Analysis of Temperature Distribution in Synchronous Generators." Proceedings of the ASME 2003 Heat Transfer Summer Conference. Heat Transfer: Volume 3. Las Vegas, Nevada, USA. July 21–23, 2003. pp. 433-443. ASME. https://doi.org/10.1115/HT2003-47078
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