3D loss and heat analysis at the end region of 4-poles 1150 MW nuclear power turbine generator

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To study the principle of loss and heat at the end region of large 4-poles nuclear power turbine generator, 3D transient electromagnetic field and 3D steady temperature field finite element (FE) models of the end region are established respectively. Considering the factors such as rotor motion, core non-linearity and time-varying of electromagnetic field, the anisotropic heat conductivity and different heat dissipation conditions of stator end region, a 50 Hz, 1150 MW, 4-poles nuclear power turbine generator is investigated. The loss and heat at the generator end region are calculated respectively at no-load and rated-load, and the calculation results are compared with the test data. The result shows that the calculation model is accurate and the generator design is suitable. The method is valuable for the research of loss and heat at the end region of large 4-poles nuclear power turbine generator and the improvement of the generator’s operation stability. The method has been applied successfully for the design of the larger nuclear power turbine generators

[1] Hrioshi O., Calculation of the magnetic field in the end region of a generator. Proc. Electr. Soc. 89(10), (1969).

[2] Kaoru Ito, Tadashi Tokumasu, Susumu Nagamo et al, Simulation for design purposes of magnetic fields in turbine-driven generator end region. IEEE Transactions on Power Apparatuss and Systems 99(4): 1586-1596 (1980).

[3] Weise J., Stephens C.M., Finite Elements for Three-Dimensional Magnetostatic Fields and its Application to Turbine-Generator End Regions. IEEE Transactions on Power Apparatus and Systems 100(4): 1591-1596 (1981).

[4] Khan M.G.K., Buckley G.W., Bennett R.B. et al, An integrated approach for the calculation of losses and temperature in the end-region of large turbine generators. IEEE Transactions on Energy Conversion 5(1):183-194 (1990).

[5] Plantive E., Salon S., Chair M.V.K., Advances in the axiperiodic magnetostatic analysis of generator end regions. IEEE Transactions on Mganetics 32(5): 4278-4290 (1996).

[6] Tang Renyuan, Xu Guangren, Tian Lijian, Zhao Danqun, Calculation of end region magnetic field and circulating losses for turbo-generator using a coupled field and circuit equation method. IEEE Transactions on Mganetics 26(2): 497-500 (1990).

[7] Huang Xueliang, Hu Minqiang, Du Yansen, Zhou E, Research on the eddy current electromagnetic field in the end region of turbogenerator and which affect the field, Transactions of China Electrotechnical Society 15(6) 1-4 (2000).

[8] Drago Ban, Zarko D., Mandi I., Turbogenerator end winding leakage inductance calculation using a 3-D analytical approach based on the solution of Neuman integrals. IEEE Transactions on Energy Conversion 20(1): 98-105 (2005).

[9] Li Jinxiang, Sun Yutian, Yang Guijie, Calculation and analysis of 3D magnetic field for end region of large turbogenerators. International Conference on Electrical Machines and Systems 2005, ICEMS pp. 2079-2082 (2005).

[10] Masafumi Fujita, Tadashi Tokumasu, Hiroyuki Yoda et al., Magnetic field analysis of stator core end region of large turbogenerators. IEEE Transactions on magnetics 36(4): 1850-1853 (2000).

[11] Yingying Yao, Haixia Xia, Guangzheng Ni et al, 3-D eddy current analysis in the end region of a turbogenerator by using reduced magnetic vector potential. IEEE Transactions on magnetics 42(4): 1323-1326 (2006).

[12] Masafumi Fujita, Tadashi Ueda, Tadashi Tokumasu et al., Eddy current analysis in the stator end structures of large capacity turbine generators. International Conference on Electrical Machines and Systems 2009, ICEMS, pp. 1-6 (2009).

[13] Du Yansen, Huang Xueliang, Liu Lei, Hu Minqiang, Study on temperature distribution in the end region of large turbogenerator. Proceedings of CSEE 16(2): 95-101 (1996).

[14] Lu Diqiang, Huang Xueliang, Hu Minqiang, Using finite element method to calculate 3D thermal distribution in the end region of turbo-generator. Proceedings of CSEE 21(3): 81-85 (2001).

[15] Xia Hai-xia, Yao Ying-ying, Xiong Su-ming et al., Magnetic-thermal coupling analysis of end region of 1000 MW turbine-generator. Proceedings of CSEE 28(14): 118-122 (2008).

[16] Li Wei-li, Li Yong,Yang Xue-feng et al, Temperature and fluid flow field calculation an analysis of stator end of air cooled turbo-generator. Proceedings of CSEE 29(36): 80-87 (2009).

[17] Li Wei-li, Guang Chunwei, Zheng Ping, Calculation of a Complex 3-D Model of a Turbogenerator With End Region Regarding Electrical Losses,Cooling ,and Heating. IEEE Transactions on Energy Conversion 26(4): 1073-1080 (2010).

[18] Yong-Tian Wei Da-Wei Meng, Jia-Bin Wen, Heat Exchange in Electrical Machine. Beijing: China Machine Press (1998).

[19] Sun-nian Ding, The Heating and Cooling of Large Electrical Machine. Beijing: China Science Press (1991).

Archives of Electrical Engineering

The Journal of Polish Academy of Sciences

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CiteScore 2016: 0.71

SCImago Journal Rank (SJR) 2016: 0.238
Source Normalized Impact per Paper (SNIP) 2016: 0.535

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