汽轮发电机饱和同步电抗的波动

Oscillation of Saturated Synchronous Reactance of Turbogenerator

同步发电机负载运行时，定、转子各部分的饱和情况和磁阻率的分布变为不均匀，使三相的同步电抗值互不相等，本文以６００ＭＷ汽轮发电机为例，用有限元法计算了不同瞬时的饱和同步电抗，阐明了受饱和影响时同步电抗的波动情况。

For operation at the rated load,the magnetic saturation and distribution of permeability is the irons of stator and rotor of synchronous machine are not uniform,so the saturated value of the synchronous reactance of each phase is not equal.Taking 600 MW turbogenerator as an example,the saturated synchronous reactances of turbogenerator in different moment are calculated by FEM.The oscillation of saturated synchronous reactance is presented.