电网技术Issue(8)：2194-2200,7.
基于多预测-校正内点法的WLAV抗差状态估计
A Robust WLAV State Estimation Based on Multiple Predictor-Corrector Interior Point Method
摘要
Abstract
In allusion to the defect that during the weighted least absolute squares (WLAV) state estimation based on predictor-corrector primal-dual interior point method (PCPDIPM) it is possible the corrector direction possibly points to wrong direction, a multiple PCPDIPM based robust WLAV state estimation algorithm is proposed. On the basis of PCPDIPM, through multiple correction the proposed algorithm dynamically estimates the centrality parameter and by use of two-stage linear searching method the optimal proportion of the corrector direction in the Newton direction is determined to ensure that the iteration points draw close to centrality parameter. Finally, the effectiveness of the proposed method is verified by simulation results of IEEE 14-bus system and test results of a certain provincial power grid in China. The convergence speed and robustness of the proposed method are much better than the weighted least square state estimation with the function of bad data identification.关键词
抗差估计/加权最小绝对值/原对偶内点法/多预测-校正内点法/状态估计Key words
robust estimation/weighted least absolute value/primal-dual interior point method/multiple predictor-corrector interior point method/state estimation分类
信息技术与安全科学引用本文复制引用
颜全椿,卫志农,孙国强,王超,孙维真..基于多预测-校正内点法的WLAV抗差状态估计[J].电网技术,2013,(8):2194-2200,7.基金项目
国家自然科学基金(51277052,51107032,61104045)。Project Supported by National Natural Science Foundation of China (51277052,51107032,61104045)。 （51277052,51107032,61104045）
