汽轮发电机灭磁时间特性的仿真计算  

The simulation computation on the de-excitation time for the turbo-dynamo unit

作　　者：耿保荃[1] 黄致新[2] 

机构地区：[1]襄阳职业技术学院机械电子信息工程学院,湖北襄阳441050 [2]华中师范大学物理科学与技术学院,武汉430079

出　　处：《华中师范大学学报（自然科学版）》2012年第4期414-416,426,共4页Journal of Central China Normal University：Natural Sciences

基　　金：国家自然科学基金资助项目(60571010)

摘　　要：发电机灭磁是发电机发生故障时消除故障防止事故扩大的最后防线,发电机安全可靠和快速的灭磁能力直接决定了发电机主变压器等设备的安全水平.本文应用MATLAB软件对600MW级汽轮发电机组的灭磁时间特性进行了仿真分析,具体对比分析了该机组在线性、氧化锌和碳化硅非线性灭磁电阻配置情况下,以及各种工况条件下的灭磁时间特性,其结果对于灭磁系统设计具有实际指导意义.The de-excitation is the last protection line for the generator when it＇s brokendown. The reliable and quick de-excitation ability dominates the safety level of the generator. In this paper, we use MATLAB software to do simulation analysis for the 600 MW turbo-dynamo unit, concretely comparing and analyzing the de-excitation time, when the system is under the circumstance of linear, nonlinear zinc oxide and silicon carbide resistor configuration, as well as the variety of working conditions. The result has practical guidance for the de-excitation system design.

关 键 词：600MW 汽轮发电机组 灭磁 计算机仿真 

分 类 号：TM311[电气工程—电机]