摘要
连续潮流法是求取静态电压稳定极限的一种有效的方法。根据预测和校正过程的不同,连续潮流法具有不同的形式。提出了改进的连续潮流法,使用PQ分解法求解潮流,预测过程使用Lagrange二次插值技术,校正过程采用局部参数法求解修正方程。与传统的使用基于极坐标形式的牛顿-拉夫逊法的连续潮流法相比,所提的改进连续潮流法计算速度快、占用内存少、准确度高。
Continuation power flow algorithms are effective for obtaining the limit of static voltage stability and they have different forms according to different predictor-corrector processes. This paper presents an improved continuation power flow algorithm, whose characteristics are as following: PQ decoupled power flow algorithm is used; Lagrange quadric interpolation is used in the process of predictor and locally parameterized method is used in the corrector. Compared with conventional continuation power flow based on New-Raphson method, the improved algorithm has advantage in terms of computation speed, less memory requirement and accuracy.
出处
《电力系统及其自动化学报》
CSCD
北大核心
2005年第2期21-25,共5页
Proceedings of the CSU-EPSA
基金
国家自然科学基金重点资助项目(50337010)
高等学校博士学科点专项科研基金资助项目(20020561004)
关键词
连续潮流法
PQ分解法
二次插值
电压稳定
continuation power flow
PQ decoupled method
quadric interpolation
voltage stability
