Title :
Research on stator coupled physical field of turbine generators
Author :
Jun-qing, Li ; Jian-min, Fu ; Ping-ping, Zhang
Author_Institution :
Sch. of Electr. & Electron. Eng., North China Electr. Power Univ., Baoding, China
Abstract :
The mathematical and physical models for the three-dimensional fluid and temperature coupling analysis of the stator with multipath ventilation system for large turbine generators were established to study its characteristics of fluid-flow and heat-transfer. Through the calculation of two-dimensional electromagnetic field on generator, the loss distribution of the stator core was obtained, then the control equations of the stator three-dimensional fluid and temperature fields are coupling calculated numerically by using the finite volume method. The model and simulated results are validated by operation data of a QFSN-220-2 turbine generator. The approach presented in this paper can be used to design and profound thermal fault analysis of large turbine generators.
Keywords :
heat transfer; stators; turbogenerators; electromagnetic field; fluid flow; heat transfer; loss distribution; multipath ventilation system; stator core; stator coupled physical field; temperature coupling analysis; thermal fault analysis; turbine generator; Cooling; Fluids; Generators; Iron; Stator cores; Stator windings; coupled field; electromagnetic field; fluid field; temperature field; turbine generators;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2010 International Conference on
Conference_Location :
Incheon
Print_ISBN :
978-1-4244-7720-3
