摘要
结合我国电力网的特点,提出了一种应用故障参数直接确定感兴趣不稳定平衡点的直接法,从而能快速地确定稳定域,计算故障临界切除时间.由于采用了三个李函数同时计算的处理技术,部分地克服了李函数本身的不足.与经典直接法和位能边界曲面法(PEBS)相比,计算精度和速度都得到了有效改善.大量实例计算表明这是一种有效的工程方法,适用于电力系统规划和设计部门的大量暂态稳定计算和在线稳定性分析.
Bised on the specific featdres of Chinese power networks, a direct method of finding the unsable equilibrium point by using the fault factors is proposed, with which the transient stable domain con be fast determined and the critical clear times are calculated. Because three Liapunov functions are calculated simulnaneously, the shortcoming of Liapunov fuctions has been partly overcome. In comparison with the classical direct methods and transient potential energy boundary surface(PEBS) method, the results obtained are moreaccurate and the time of calculation is shorter. The tests in many real power systems show the this method is valid and can be used for the plan ning and design of electric systenand on-line transient stabilijy analysises.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
1991年第2期60-65,共6页
Journal of Southeast University：Natural Science Edition
关键词
电力系统
稳定域
直接法
故障参数
power system, stability / direct method, steble domitn
