Robust dynamic state estimation of power systems based onM-Estimation and realistic modeling of system dynamics

摘要

This paper presents a new scheme of dynamic state estimation,nutilizing a statistical approach called the M-Estimation to resolve thenfiltering problem robustly. In the prediction step, realistic treatmentnof system dynamics based on nodal analysis produces an efficient statenprediction method. The proposed Robust Realistic Dynamic StatenEstimation (RRDSE) has been tested on 5-bus, 14-bus, and 30-bus testnsystems and the results are presented. The error analysis presentednreveals the superiority of the proposed RRDSE particularly when thensystem measurements are under bad-data condition