To study the characteristics and influencing factors of inter-turn short circuit fault of excitation winding of hydro-generator, the fault mechanism of inter-turn short circuit of excitation winding was analyzed, and the expressions of excitation magnetomotive force and air gap magnetic density under normal and fault conditions of hydro-generator were deduced. On this basis, a two-dimensional finite element simulation model of the hydro generator was established by using the field-circuit coupling method, and the harmonic characteristics of the rotor magnetic field during the excitation winding inter-turn short circuit fault of the hydro-generator were obtained through the excitation winding inter-turn short circuit fault simulation.
辛鹏, 沈航, 吴永峰.
水轮发电机励磁绕组匝间短路时的磁场谐波特征研究
[J]. 吉林化工学院学报, 2023, 40(3): 17-21.
XIN Peng, SHEN Hang, WU Yongfeng.
Study of Magnetic Field Harmonic Characteristics of Excitation Winding Inter-turn Short Circuit of Hydro-generator
. Journal of Jilin Institute of Chemical Technology, 2023, 40(3): 17-21.