The newly developed AP1000 water-hydrogen cooled 4 pole turbo-generator stator is the research object

in which cooling structure

cooling mode and cooling performance of cooling medium are analyzed. In order to set up the one to one correspondence with the rotor

1/32 circular structure of 3 dimensional model of the whole stator

rotor and air gap is established

and cooling medium temperature distribution characteristics are analyzed by u- sing the computational fluid mechanics principle. The temperature distribution of the stator iron core

magnetic shielding

pressure plate

copper coils and the location of the maximum temperature of each part are gotten. Maxi- mum temperature rising is calculated

which is within engineering reasonable range. It is the reference for structure design and optimization of ventilation for the turbine generator.