摘要
阐述了一种基于混合连续参数选取的拉格朗日插值预测方法及相应的变步长策略,并将其应用于连续潮流计算中。这种方法通过分区域选择不同的连续参数,构造拉格朗日插值系数预测潮流解,并结合相应的变步长控制方法,对连续潮流算法进行改进。此外,利用此方法以及基于单一连续参数选取的拉格朗日插值预测方法,针对IEEE14节点和IEEE39节点电力系统进行潮流计算与对比,结果表明此算法具有更好的适用性和鲁棒性。
The paper expounds a mixing continuous parameters selection-based Lagrange interpolation method and relevant variable step-size strategy for calculating continuation power flow. The purpose of the method is to find a continuation parameter of power flow solutions for a given load change scenario, and improves continuation power flow method combining relevant variable step-size strategy. Moreover, this method chooses different continuation parameters in different areas of the PV curves to obtain the Lagrange interpolation coefficient, and then predicts the power flow. The paper compares this method with others which bases on single continuation parameter according to IEEEl4-bus and IEEE39-bus system, and the results show that the method proposed in the paper is of high robustness and wide applicability.
出处
《陕西电力》
2013年第9期55-58,共4页
Shanxi Electric Power
关键词
连续潮流
拉格朗日插值法
连续参数
变步长
continuation power flow
Lagrange interpolation method
continuation parameter
variable step
