Abstract
Centrifugal forces and Coriolis forces significantly influence the airflows and heat-exchange during rotation of a power hydrogenerator with one pair of poles and air conditioning of the rotor and stator. Ventilation and heat calculations of the rotor and stator are carried out using the finite element method. The influence of the motion of airflows in the ventilation ducts of the stator core, interpole space, and operating clearance on distribution of the rotor temperature is researched. The design data satisfactorily agree with the results of experimental research. It is shown that the suggested calculation method can be used while analyzing the heat condition of a hydrogenerator with a capacity of up to 1000 MW with a complete air cooling system.
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