Keywords
stator core
end laminating sheets
non-uniformity of heating
cooling
How to Cite
Abstract
The mathematical model of heat-exchange processes in the end laminating stator core sheets of high-power turbo-generator is developed. The heating of the teeth in the interfacial area and outside the area is analyzed. The ways to reduce the tangential non-uniformity and levels of heating of the stator core teeth are proposed. The directed redistribution of cooling hydrogen stream along with increased transverse thermal conductivity gives a possibility to decrease the total heating of the end stator core sheets by 15 %. References 7, figures 6, tables 2.
References
Kostyaev B.V., Ptashkin A.V. On the heating of the extreme packages of the stator core of large turbogenerators with underexcitation. Electric stations. 1979. No. 5. P. 40–44.
Danylevich Y.B., Pypko R.M. The magnetic field in the end zone of the stator core of an alternating field electric machine taking into account the influence of groove scattering. Electrical engineering. 1982. No. 9. P. 36–39.
Smorodin V.Y., Karatsuba A.S., Rudenko L.N. etc. Some features of electromagnetic processes on the end face of the turbogenerator stator. Technical electrodynamics. 1983. No. 3. P. 65–72.
Tytko A.Y., Fedorenko H.M., Lyvshits A.L., Kobzar K.A. Tangential non-uniformity of electromagnetic and thermal characteristics in the extreme packages of the turbogenerator when the load changes. Hydropower of Ukraine. 2012. No. 3. P. 48–53.
Schastlyvyi H.G., Fedorenko G.M., Vygovsky V.I. Turbo- and hydrogenerators with variable load schedules. Kyiv: Nauk. dumka, 1985. 208 p.
Khutoretskyi G.M., Tokov M.I., Tolvynskaya E.V. Design of turbogenerators. Leningrad: Energoatomizdat, 1987. 256 p.
Schastlyvyi H.G., Fedorenko H.M., Tereshonkov V.A., Vygovsky V.I. Electric machines with liquid cooling. Academy of Sciences of the Ukrainian SSR. Institute of Electrodynamics. Kyiv: Nauk. dumka, 1989. 288 p.
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2018 О.H. Kensytskyi, D.I. Khvalin, N.L. Sorokina