同步发电机失磁运行状态分析  

Synchronous generator magnetic loss operation analysis

作　　者：王继强 魏微 

机构地区：[1]国电濮阳热电有限公司设备部,河南濮阳457000 [2]大唐安阳发电厂,河南安阳455000

出　　处：《水利电力机械》2007年第11期72-74,132,共4页Water Conservancy & Electric Power Machinery

摘　　要：发电机励磁电流的变化,是影响电网的电压水平和并联运行机组间无功功率分配的主要因素。良好的励磁系统在保证电能质量、无功功率的合理分配及提高电力系统运行的可靠性方面,都起着十分重要的作用。分析了同步发电机失磁运行的原因及现象和同步发电机失磁运行的物理过程,讨论了失磁运行对发电机本身和电网造成的影响并提出了失磁运行的解决方法。Generator excitation current change is the main factor affecting networks voltage level and reactive power distribution in parallel operation units. Good excitation system plays an important role in ensuring the quality of electric energy, rational allocation of reactive power and improvement on operation reliability. This article analyzes the synchronous generator excitation loss operation and the reasons. Analysis of the physical process of synchronous generator excitation loss operation is performed. Effects of this phenomenon are discussed and solutions are raised.

关 键 词：同步发电机 失磁运行 物理过程分析 方法 

分 类 号：TN325[电子电信—物理电子学]