汽轮发电机的三阶模型和超-超瞬态电抗

The 3rd Order Model and Sub-Subtransient Reactances of Turbogenerator

用多个回路来模拟实心转子、槽楔和阻尼回路中的涡流，导出汽轮发电机三阶模型的运算电机和超一超瞬态电抗；并从电磁场数值计算所得的频率特性，确定三阶模型的各个电抗和时间常数；为三阶模型的工程应用和更精确地预计和计算汽轮发电机的瞬态和异步运行等动态问题打下基础。

Using the multi - circuits to modelling the eddy currents in the solid rotor, wedge and damper circuits, the operational impedances and sub - subtransient reactances of the 3rd order model of turbogenerator are derived. Then, the reactances and time constants of the 3rd order model are determined from the frequen cy characteristics obtained by numerical field calculation. These form the basis of engineering usage of the 3rd orfer model, and the transient and asynchronous performances of turbogenerator can be predicted and calculat ed more accurately.