摘要
分析了大型汽轮发电机负序电流产生的原因及危害。介绍了提高发电机承受负序电流能力的一些措施。同时也介绍了分析发电机不对称运行的基本方法——对称分量法。最后举例阐述了近年来国内具有代表性的300MW内冷发电机承受不平衡负荷的事例。
The reason and harms of large turbine generator negative sequence current are analyzed. The measures of improving generator negative sequence capability are also introduced. Symmetrical components method is shown to analyze generator asymmetric operation. Finally, some typical examples of 300MW inner cooled generator which sustained unbalanced load are presented in recent years.
出处
《上海电气技术》
2012年第3期37-39,58,共4页
Journal of Shanghai Electric Technology
关键词
汽轮发电机
负序电流
不对称运行
对称分量法
turbine generator
negative sequence current
asymmetric operation
symmetrical components method
