%0 Journal Article
%A Zhengwei Ren
%A Ying Chen
%A Shaowei Huang
%A Miguel Heleno
%A Yue Xia
%B IEEE Access
%D 2019
%G eng
%P 132859 - 132870
%R 10.1109/Access.628763910.1109/ACCESS.2019.2941386
%T A Fully Distributed Coordination Method for Fast Decoupled Multi-Region State Estimation
%V 7
%8 09/2019
%! IEEE Access
%X <p>Distributed state estimation (DSE) is effective for the analysis of multi-region state estimation problems, avoiding integrating complicated data sets and models. In this work, the peer-to-peer decomposition of the Karush-Kuhn-Tucker (KKT) condition is applied to formulate the fully distributed fast decoupled state estimation (FD2SE) algorithm. Then, a fixed-matrix form data-exchanging interface incorporating the fast decoupled algorithm is designed, reducing the communication costs and allowing it to be used for various system operating conditions. Further, a convergence detecting method for dispatch centers is proposed in order to infer, locally and asynchronously, about the global convergence. Case studies carried out on IEEE systems and a real power grid of China verify the accuracy and efficiency of the FD2SE algorithm.</p>