汽轮发电机失磁异步运行数学模型及数值仿真  

Mathematic Model of Turbogenerators during Asynchronous Operation and Simulation of Loss of Field

作　　者：赵军[1,2] 郭可忠[1,2] 叶雷 

机构地区：[1]上海交通大学 [2]郑州市电业局

出　　处：《汽轮机技术》1999年第4期237-240,共4页Turbine Technology

摘　　要：根据Ｃａｎａｙ所分析的汽轮发电机组实心转子各涡流阻抗，利用其参数计算公式获得随转差变化的ｄ轴三绕组变参数模型。运用计入调速器、调压器、变压器和输电线的单机无限大系统对１２５ＭＷ、６００ＭＷ和９００ＭＷ汽轮发电机组进行失磁仿真。其结果与现场录波图相比，得到了理想的效果，各状态量的摆动周期和波形相当接近。According to impedance of eddy current circuits in solid rotors of the turbogenerators analysed by Canay, the variable-parameter mathematical model with three windings at direct axis is obtained by Canay's calculating formulas. Then simulation of loss of field for 125MW,600MW and 900MW turbogenerator sets on infinite system, including governor, voltage-regulator, tranformer and transmission line, is conducted. The results are compared with those measured at site, changed cycles for variables are relatively close to their waves. The results are quite good.

关 键 词：汽轮发电机 数学模型 失磁 仿真 异步运行 

分 类 号：TM311.06[电气工程—电机]