慢动态对电力系统中长期失稳机理的影响  

Influence of Slow Dynamics on Mid-long Term Instability Mechanisms of Power Systems

作　　者：雷文[1] 刘永强[1] 吴捷[1] 

机构地区：[1]华南理工大学电力学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2003年第7期6-9,共4页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家重点基础研究专项资助项目(G1998020308)

摘　　要：采用奇异摄动模型,通过一个简单电力系统在大干扰下发生中长期失稳的实例,分析了慢动态对系统中长期失稳的影响。指出建模时随意固定慢动态会造成电力系统中长期稳定性的误判。本文的分析结果对电力系统中长期稳定性研究有着理论与实践的意义。Using singular perturbation model,by the example of a simple power system losing stability in big disturbance, this paper analyses the mid-long term instability mechanisms affected by slow dynamics. It points out that fixing slow dynamics randomly in building model may cause incorrect estimation of mid-long term stability. These results are both theoretically and practically significant in the study of mid-long term stability of power system.

关 键 词：中长期稳定性 稳定机理 慢动态 奇异摄动 

分 类 号：TM712[电气工程—电力系统及自动化]