汽轮发电机失磁过程分析

作者：马波涛,姚缨英 日期：2008-11-03/span> 浏览：4310 查看PDF文档

汽轮发电机失磁过程分析

马波涛,姚缨英
（浙江大学 电气工程学院，浙江 杭州 310027）

摘要：针对目前汽轮发电机失磁异步运行性能的不断提高，对汽轮发电机失磁过程进行了仿真分析。从系统角度建立了模拟汽轮发电机失磁故障的数学模型，并利用Matlab/Simulink对失磁全过程进行了仿真分析，并利用该模型对汽轮发电机的失磁故障进行了仿真计算。仿真结果与实测结果的对比说明了仿真模型的正确性，对电机设计和电网运行具有一定的有参考价值。
关键词：失磁；Matlab；仿真；汽轮发电机
中图分类号：TM311.06文献标识码：A文章编号：1001-4551(2008)09-0021-04

Analysis of dynamic processes for turbogenerator
MA Botao, YAO Yingying
(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)
Abstract: Aiming at improving of asynchronous operation lost magnetization on turbo-genrator, the dynamic process of the turbogenerator under excitation loss was analyzed. At first, the excitationloss model was estabished, and the whole process under excitation loss with Matlab/Simulink was simulated. The excitation loss of the turbogenerator was simulated. It illustrates the correctness of the model by comparing the simulation result with the measured result. The result is valuable to design generator and operate the power grid.
Key words: excitation loss; Matlab; simulation; turbo-genrator
参考文献(Reference):
［1］杨嗣彭.同步电机运行方式的分析：第1版［M］.成都:成都科技大学出版社,1989.
［2］JAMES N, Nash. Direct torque control, induction motor vector control without an encoder ［J］. IEEE Transactions on Industry Applications,1998,33(2):32-35.
［3］周茜，苏鹏声，王祥珩．水轮发电机失磁的动态过程分析［J］．电力自动化设备，2002，22(6)：9-11．
［4］郭可忠，于奇志，刘笙．汽轮发电机异步运行的数学模型及失磁仿真［J］．大电机技术，1994（6）：12-19．
［5］GISH W B, SCHURZ J R, MILANO B, et al. An adjustable speed synchronous machine for hydroelectric power applications[J]. IEEE Transactions on Power Apparatus and System,1981,PAS-100(5):2171-2176.
［6］赵军，郭可忠，叶雷．汽轮发电机失磁异步运行数学模型及数值仿真［J］．汽轮机技术，1999，41（4）：237-240．
［7］黄家裕,陈礼义,孙德昌.电力系统数字仿真：第1版［M］.北京:水利水电出版社,1995.