基于半不变量的电力系统静态稳定性概率分析Probability Analysis on Steady-state Stability of Power System Based on Cumulant
徐彩凤,徐冬东,张传成
XU Cai-feng,XU Dong-dong,ZHANG Chuan-cheng
摘要(Abstract)：
提出一种基于半不变量的随机静态稳定模型,能够在计算系统概率潮流的同时,应用静态稳定性分析的经典判据,通过对随机变量的简单运算直接给出所研究运行方式失去静态稳定的概率。算例表明了该方法的可行性。
A probabilistic model of steady-state stability based on cumulants can calculate probabilistic load flow,at the same time,it can use classical stability criterions to give the probability index of power system steady state stability by convenient calculation of the random variables.An example is given to show that the proposed method is feasible.
关键词(KeyWords)：
电力系统;静态稳定;概率分析;半不变量
power system;steady-state stability;probability analysis;cumulant
基金项目(Foundation):
作者(Author):
徐彩凤,徐冬东,张传成
XU Cai-feng,XU Dong-dong,ZHANG Chuan-cheng
DOI: 10.19585/j.zjdl.2008.06.002
参考文献(References)：
- Burchett R C,Heydt G T.Probabilistic methods for powersystem dynamic stability studied[J].IEEE Trans.PAS,1978,97(3):695-702.
- Heydt G T,Burchett R C.Stochastic Analysis of PowerSys-temDynamic Stability.Proceeding Joint Automation ControlConf.IEEE Publication CH1220-3CS,1977,(77)755-767.
- Brucoli M.Probabilistic approachfor power systemdynamicstability studies[J].Proc.IEE,1981,123(5):295-301.
- Loparo K A.Probabilistic mechanismfor small disturbanceinstabilities in electric power systems[J].IEEE Trans.CAS,1985,32(2):177-184.
- 林海原.交流模型下电力系统潮流计算[J].电力自动化设备,2006,26(6):53-56.
- P Zhang,S TLee.Probabilistic load Flowcomputationus-ing the method of combined Comulants and Gram-Charlierexpansion[J].IEEE Trans.on Power Systems,February2004,19(1):676-682.
- 曹一家,程时杰.电力系统静态稳定性的概率分析[J].华中科技大学学报(自然科学版),2005,33(5):79-81.
- 水利电力部电力科学院,电力规划设计院.电力系统潮流短路电流动态稳定计算汇编[M].北京:水利电力出版社,1983.