求取静态电压稳定极限的改进连续潮流法  

Improved Continuation Power Flow Algorithm for Obtaining the Limit of Static Voltage Stability

作　　者：张尧[1] 张建设[1] 袁世强[2] 

机构地区：[1]华南理工大学电力学院,广州510640 [2]天津大学电气与自动化工程学院,天津300072

出　　处：《电力系统及其自动化学报》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)

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.

关 键 词：连续潮流法 PQ分解法 二次插值 电压稳定 

分 类 号：TM712[电气工程—电力系统及自动化]