TY - JOUR A2 - Pennacchi, Paolo AU - Zeng, Chong AU - Huang, Song AU - Yang, Yongming AU - Zhou, Guanghou PY - 2017 DA - 2017/10/29 TI - Influence of End Structure on Electromagnetic Forces on End Winding of a 1550 MW Nuclear Generator SP - 9545238 VL - 2017 AB - A 3D electromagnetic model of the end region of a 1550 MW nuclear generator is set up. The electromagnetic forces on the involute and nose parts of the end winding under a rated operation are obtained through the 3D time-step finite element method. The electromagnetic forces on different coils in the same phase are analyzed. By changing the rotor’s relative length and stator coil’s linear length in the 3D electromagnetic model, the electromagnetic force distributions on the end winding are obtained. The influence of each structure change on the electromagnetic force in different directions is studied in detail. Conclusions that can be helpful in decreasing the electromagnetic forces on the end winding through optimizing the end region design are presented. SN - 1023-621X UR - https://doi.org/10.1155/2017/9545238 DO - 10.1155/2017/9545238 JF - International Journal of Rotating Machinery PB - Hindawi KW - ER -