Research on temperature field of turbo-generators based on coupled physical field

Author

Li Junqing ; Ma Shaoli ; Li Heming

Author_Institution

North China Electr. Power Univ., Baoding

fYear

2007

fDate

8-11 Oct. 2007

Firstpage

1231

Lastpage

1235

Abstract

Temperature is one of the important physical variables in turbo-generators, so accurate prediction of temperature is very necessary in generators design and operation. This paper presents coupling mathematical model of electromagnetic and temperature field and calculates them by finite element method (FEM). First, magnetic field distribution of generators is accurately determined, so thermal source is known. Then, the mathematical model of temperature field is proposed, and temperature filed can be obtained. Couple field of electromagnetic and temperature in QFSN-200-2 turbo-generators is calculated by finite element analysis software (ANSYS), the proposed method is validated to be correct by comparing calculation and measurement values.

Keywords

electromagnetic fields; finite element analysis; magnetic fields; turbogenerators; coupled physical field; coupling mathematical model; electromagnetic field; finite element analysis software; magnetic field distribution; temperature field; turbogenerators; Electromagnetic analysis; Electromagnetic coupling; Electromagnetic fields; Finite element methods; Magnetic analysis; Magnetic field measurement; Magnetic fields; Mathematical model; Software measurement; Temperature; Turbo-generators; electromagnetic field; finite-element method (FEM); temperature filed;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2007. ICEMS. International Conference on

Conference_Location

Seoul

Print_ISBN

978-89-86510-07-2

Electronic_ISBN

978-89-86510-07-2

Type

conf

Filename

4411985