汽轮发电机失磁异步运行及其涡流损耗分析  

The Process’s Research of the Turbo-generator with Loss of Excitation Asynchronous Operation and Eddy Current Loss

作　　者：王道元 徐余法[2] 

机构地区：[1]国网六安市城郊供电公司,安徽六安237000 [2]上海电机学院电气学院,上海200240

出　　处：《控制工程》2018年第2期371-374,共4页Control Engineering of China

摘　　要：汽轮发电机失磁故障对电机和电网有严重危害,失磁故障会破坏电机与电网间的稳定性,影响并联运行发电机组间的正常运行。利用派克变换原理,基于Matlab/Simulink工具搭建了单机无穷大系统,对发电机失磁的动态特性进行仿真研究,再结合Ansoft Maxwell软件研究失磁过程中转子涡流损耗,分析了各种电气量在失磁过程中的物理变化,为汽轮发电机在失磁故障下的运行与控制提供理论依据。Turbo-generator with loss of excitation faults are harmful to the generator and the power grid, the loss of excitation faults would destroy the stability of the generator and the inter grid, affecting the normal operation of the parallel operation of generator groups. In this paper, by the park transformation principle, a single machine infinite bus system is built based on the MATLAB/Simulink tool to study the dynamic characteristics of the generator with loss of excitation, combining the Ansoft Maxwell software to researh the rotor eddy current loss in the process of excitation-loss, analyze the various electrical quantities of the physial change in the process with loss of excitation, and provide a theoretical basis for the operation and control of the excitation-loss faults to the turbo-generator.

关 键 词：汽轮发电机 动态特性 失磁 派克变换 

分 类 号：TM311[电气工程—电机]