摘要
（上接本刊１９９９年第１期第７页）１４ＥＡＣ在ＯＭＩＢ系统中的扩展１４．１将ＥＡＣ扩展到反向摆动的稳定分析如果Ｐｍ＜ＰｃＰ，而首摆（正向）稳定裕度又为很小的正数时，则第２摆（反向）可能失稳（见图６９）。图６９第２摆（反向）失稳Ｆｉｇ．６９Ｔｈｅｓｅｃ...
Numerical integration can show accurate trajectory of the disturbed system. however.no quantitative answer to stability can be given. Lyapunov functions provide sole sufficientbut not necessary condition for autonomous systems stability, so that they are not suitable for quantitatively studying motion stability. For non-conservative or nonautonomous systems.it is very difficult to develop Lyapunov functions with meaningful stability domain, and the guarantee on sufficient condition for stability might be lost by using Lyapunov-like functions. The Complementary-Cluster Energy-Barrier Criterion (CCEBC) developed in this paper is a rigoroustheory and quantitative method for nonautonomous motion stability. Many relevant problems arestudied in the paper.The Extended Equal-Area Criterion (EEAC) for power system transient stability.which has been used in engineering projects. is just such an example.
出处
《电力系统自动化》
EI
CSCD
北大核心
1999年第3期8-11,共4页
Automation of Electric Power Systems
基金
国家自然科学基金
电力部联合资助项目
关键词
电力系统
暂态稳定性
多刚体系统
非线性
nonlinear systems
nonautonomous motion systems
necessary and sufficient condition
quantitative stability analysis
power systems.
