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- Title
THERMAL CHARACTERISTICS ANALYSIS OF MEDIUM FREQUENCY TRANSFORMER UNDER MULTIPLE WORKING CONDITIONS.
- Authors
Pei HUANG; Tong SHEN; Zhenxing LIU; Renjun DIAN; Wanlun XU; Dan WANG
- Abstract
Medium frequency transformer plays an important role in high power AC-DC transformation in power grid, due to its high power density and high loss density, it brings difficulty to heat dissipation. Thermal reliability is crucial for transformer design, different from the previous work, the thermal characteristics of MFT under different working conditions are concerned and analyzed in this paper. The temperature field model of medium frequency transformer is established, and the temperature field characteristics of medium frequency transformer at rated load, no load, overload, fluctuating overload and short circuit conditions are simulated and analyzed, the results show that with the increase of load coefficient, the winding temperature increases obviously, the allowable load coefficient of medium frequency transformer can be determined by calculating the transformer temperature at different load coefficients, which lays a foundation for thermal reliability and safe operation of medium frequency transformer.
- Subjects
THERMAL analysis; ELECTRIC transformers; ELECTRIC power distribution grids; POWER density; DEBYE temperatures; SHORT circuits
- Publication
Thermal Science, 2024, Vol 28, Issue 1B, p599
- ISSN
0354-9836
- Publication type
Article
- DOI
10.2298/TSCI230807239H