Thermo Hydraulic Model For Stator Winding Of Turbo Generator

Temperature abnormity of generator stator winding is a familiar failure. To give criterion for early failure detection, this paper has work over getting the normal temperature for the winding on variant condition. Using stable heat transferring theory, a thermo hydraulic model has been built, which has considered the influence of the core temperature and cooling hydrogen temperature. And bring forward a modifying method, which let the model can be used in the varying winding current condition. This method improved the model's precision. Trained by stable data of the well running generator, parameters of the model are identified. Comparing the real temperature and the normal temperature, the error between then is not more than 1.3℃.Zhang Feng(Electrical Machinery and Electric Equipment)Directed by prof. Li Heming...