密集型固有振模电力系统模态不稳定现象研究  

Study on modes instability in electric power system with close modes

作　　者：赵书强[1] 陈慷[1] 马燕峰[1] 胡永强[1] 

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《华北电力大学学报（自然科学版）》2011年第5期1-5,共5页Journal of North China Electric Power University：Natural Science Edition

基　　金：河北省自然科学基金资助项目(E2010001693.E2011502014);教育部中央高校基本科研业务费专项资金资助项目(09MG07)

摘　　要：大规模电力系统不可避免地会出现振荡模式密集的现象,振荡模式密集将对电力系统的动态特性产生较大影响。利用摄动法,通过理论分析阐明了密集振模电力系统发生模态不稳定的机理,给出了判断模态不稳定的方法,通过算例验证了模态不稳定现象的存在。There exist many close modes in large electric power system. The close modes make great effect on the dynamic characteristic of electric power system. The mechanism of modes instability in electric power system with close modes was analyzed using perturbation method and the criterion of modes instability judgment was presented. The 10- machine New England test system was employed to demonstrate the modes instability.

关 键 词：密集振荡模式 模态不稳定 摄动法 转角法 

分 类 号：TM7[电气工程—电力系统及自动化] TM711.2