机电统一数学模型中发电机动态参数的数值计算  

Numerical Calculation of Dynamic Parameters of Shaft Torsional Vibration for a Turboalternator

作　　者：张炳军[1] 王琳[1] 马志云[1] 

机构地区：[1]华中理工大学电力工程系

出　　处：《华中理工大学学报》1993年第1期125-129,共5页Journal of Huazhong University of Science and Technology

基　　金：国家"八.五"科技攻关项目

摘　　要：已有的大型汽轮发电机轴系扭振的计算,其发电机数学模型的参数均采用常数,未充分考虑实际工况下铁芯涡流和饱和程度对参数的影响,给计算带来较大误差.为此提出大型汽轮发电机动态参数的场路结合计算法,既考虑了铁芯涡流效应又考虑了饱和对动态参数的影响.The accuracy of the numerical calculation of the shaft torsional vibration for an electromechanical system depends to a great extent on the accuracy of the mathematical model and electromagnetic parameters. The electromagnetic parameters are different when the alternator operates under different modes. A method using the integrated field circuit for calculating the dynamic electromagnetic parameters is developed, with the effects of eddy currents, including those in damper circuits,and saturation taken into consideration. The parameters obtained should be in better agreement with actual conditions.

关 键 词：汽轮发电机 动态参数 数值计算 

分 类 号：TM311[电气工程—电机]