The Calculation of Rotor Temperature Field for Hydro-generator as Well as the Analysis on Relevant Factors

Author

Li Weili ; Shuye, Ding ; Feng, Zhou ; Yingli, Luo

Author_Institution

Harbin Inst. of Technol.

fYear

0

fDate

0-0 0

Firstpage

455

Lastpage

455

Abstract

In this paper the mathematical model of the rotor temperature field in a hydro-generator is established, and assumptions of the solved region in the hydro-generator are presented. The steady temperature field in the rotor is calculated by 3D finite element method, and the results are very well agreement with the measured values. The heat transfer theory is applied to study the influence of the uneven surface heat transfer coefficients on the temperature of rotor´s windward side and leeward side in middle and end part of rotor. Also, the influence of the extra loss on the surface of pole on rotor temperature field is analyzed. Finally, some valuable conclusions are obtained

Keywords

finite element analysis; heat transfer; hydroelectric generators; rotors; 3D finite element method; hydrogenerators; mathematical model; rotor temperature field calculation; surface heat transfer coefficients; Copper; Damping; Footwear; Heat transfer; Mathematical model; Rotors; Stator windings; Teeth; Temperature distribution; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on

Conference_Location

Miami, FL

Print_ISBN

1-4244-0320-0

Type

conf

DOI

10.1109/CEFC-06.2006.1633245

Filename

1633245