基于有限元法的汽轮发电机内部故障仿真分析Analysis of Steam Turbo-generator Internal Fault Based on Finite-element Method
陈奋,马宏忠,徐树峰
CHEN Fen1,MA Hong-zhong2,XU Shu-feng3(1.Huizhou Power Supply Bureau
摘要(Abstract):
从有限元法在电机磁场求解中的应用入手,分析了用有限元法求解电机参数的方法。利用Ansoft软件建立了汽轮发电机的仿真模型,给出了在不同运行状态下发电机内部磁场的分布图,结合故障情况下其他电气参数的变化,验证了通过研究发电机内磁场的变化规律和相关电气参量进行故障诊断的可行性。
This paper introduces the application of finite-element method on solving the electric machine magnetic field equation,and analyzes the approach for using the finite-element method to obtain the electric machine parameter.By the Ansoft to establish a steam turbo-generator simulation model,analyzes the variation disciplinarian and characteristic of the internal magnetic field in the different operation condition,integrates the variation of other electric parameter in the abnormal condition,and then validates the possibility of using the internal magnetic field variation disciplinarian and collection electric parameter to diagnose fault.
关键词(KeyWords):
有限元;汽轮发电机;Ansoft;电磁场
finite-element;steam turbo-generator;Ansoft;electric magnetic field
基金项目(Foundation):
作者(Author):
陈奋,马宏忠,徐树峰
CHEN Fen1,MA Hong-zhong2,XU Shu-feng3(1.Huizhou Power Supply Bureau
DOI: 10.19585/j.zjdl.2009.02.002
参考文献(References):
- [1]王祥珩.发电机内部短路分析研究最新进展[J].电力系统动化,1999,23(11):10-12.
- [2]R HPark.Two-Reaction Theory of Synchronous Machines-Genelized Method of Analysis[J].IEEE Transaction on Ener-gy Conversion,1989(48):125-180.
- [3]A W Rankin.The Direct and Quadrature Axis EquivalentCircuits of The Synchronous Machine[J].IEEE Transactionon Energy Conversion,1995(44):861-868.
- [4]A WRankin.Per-unit Impendances of Synchronous Machine[J].IEEE Transaction on Energy Conversion,1995(64):569-573.
- [5]J NReddy.有限元法概论[M].邹仲康,译.长沙:湖南科学技术出版社,1988.
- [6]刘国强,赵凌志,蒋继娅.Ansoft工程电磁场有限元分析[M].北京:电子工业出版社,2005.