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Lumped parameter thermal model for electrical machines of TEFC design
Abstract
A lumped-parameter thermal model is described which provides both a steady-state and transient solution to the temperatures within an electrical machine of the TEFC design. The model is sufficiently complex to identify the temperatures at most locations in the machine, including the peak temperatures in the endwinding and the surface temperatures of the rotor. It is formulated out of purely dimensional information and constant thermal coefficients and is therefore easily adapted to a range of frame sizes. The thermal behaviour of the TEFC machine is accurately described by the solution of just eight linear differential equations. The model is therefore suitable for application to online temperature estimation for protection and duty-cycle evaluation. The application of the thermal model to a medium (75 kW) and two small (5.5 kW) induction motors is described in detail. The model performance is confirmed by experimental temperature data obtained from varying load tests on each of the three induction motors.
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Citations
Cited by
Review of condition monitoring of rotating electrical machines
Tavner, P. J. (2008) · IET Electric Power Applications · doi:10.1049/iet-epa:20070280 · Cited by 531
Air-Gap Convection in Rotating Electrical Machines
Howey, D. A., Childs, P. R. N., & Holmes, A. S. (2012) · IEEE Transactions on Industrial Electronics · doi:10.1109/tie.2010.2100337 · Cited by 331
A Survey of Methods for Detection of Stator-Related Faults in Induction Machines
Tallam, R. M., Lee, S. B., Stone, G. C., Kliman, G. B., Yoo, J., Habetler, T. G., & Harley, R. G. (2007) · IEEE Transactions on Industry Applications · doi:10.1109/tia.2007.900448 · Cited by 301
Metadata
- Authors
- Mellor, P. H., Roberts, D., & Turner, D. R.
- Venue
- IEE Proceedings B Electric Power Applications
- Published
- 1991
- Volume
- 138
- Issue
- 5
- Pages
- 205
- ISSN
- 0143-7038 (ISSN-L)
- OpenAlex
- W1997831457
- Cited by
- 885
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Lumped parameter thermal model for electrical machines of TEFC design. https://app.cochat.ai/papers/10.1049/ip-b.1991.0025
- The paper
- Mellor, P. H., Roberts, D., & Turner, D. R. (1991). Lumped parameter thermal model for electrical machines of TEFC design. IEE Proceedings B Electric Power Applications. https://doi.org/10.1049/ip-b.1991.0025
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