Title :
A Robust WLAV State Estimation Using Optimal Transformations
Author :
Yanbo Chen ; Feng Liu ; Shengwei Mei ; Jin Ma
Author_Institution :
State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Beijing, China
Abstract :
Works by Celik and Abur suggest a weighted least absolute value state estimation with transformations (WLAV-T) for attaining insensitiveness of state estimation (SE) to bad measurements by mitigating the effect of leverage points. To further improve its applicability, this letter proposes a systematic approach to compute the optimal rotation angles and scaling factors of the WLAV-T, deriving a robust WLAV estimation approach with optimal transformations (WLAV-OT). The proposed approach has been preliminarily tested with promising results.
Keywords :
energy management systems; estimation theory; matrix algebra; power system state estimation; WLAV-OT; leverage point effect mitigation; optimal rotation angle; power system state estimation; robust WLAV state estimation approach with optimal transformation; scaling factor; weighted least absolute value state estimation; Jacobian matrices; Mathematical model; Power systems; Robustness; State estimation; Systematics; Optimal transformation matrix; robust state estimation; weighted least absolute value;
Journal_Title :
Power Systems, IEEE Transactions on
DOI :
10.1109/TPWRS.2014.2358452
