Calculation of temperature distribution in the stator of larger evaporative cooling turbo-generator

Author

Jian-hong, Guo ; De-ping, Fu ; De-shu, Hang ; Ximing, Li

Author_Institution

Inst. Electr. Eng., Chinese Acad. of Sci., Beijing

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

579

Lastpage

584

Abstract

Evaporative cooling for generator stator is an independent innovative technology developed by China. The development of the technology is in research stage. The mechanism of applying phase transition for evaporative cooling of the generator stator was introduced. according to the 300 MW turbo-generator design specification, and based on the two phase fluxion of cooling medium in the hollow conductor, we proposed the calculation of the medium fluxion resistance and the evaporative point of the cooling medium in the hollow conductor. We also carried out analysis of the temperature distribution along the stator winding and compared our calculation with the experiment results to demonstrate the feasibility of the proposed calculation.

Keywords

conductors (electric); stators; temperature distribution; turbogenerators; evaporative cooling; hollow conductor; phase transition; power 300 MW; stator winding; temperature distribution; turbogenerator design; two phase fluxion; Conductors; Copper; Hydraulic turbines; Hydrogen; Insulation; Liquid cooling; Prototypes; Stator windings; Temperature distribution; Wire; evaporative cooling; forced inner cooling; turbine-generator; two phase flow;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4770769