Title :
Hierarchical State Estimation Applied To Wide Area Power System
Author :
Lakshminarasimhan, Srivatsan ; Girgis, Adly A.
Author_Institution :
ECE Dept., Clemson Univ., SC
Abstract :
This paper proposes to apply hierarchical state estimation technique to consolidate the state output of a wide area network. In a wide area network comprising of a large number of interconnection between various utilities of the wide area, it is essential to monitor the state of the entire system. Here a modified coordination technique derived from hierarchical state estimation is proposed to consolidate the state outputs of all the individual entities in the wide area. The method overcomes issues of incoherency and loss of state outputs associated with the heterogeneity of the estimators in each member utility of the wide area. The coordination algorithm was tested on a IEEE 118 bus system by splitting the system into smaller areas
Keywords :
power system state estimation; IEEE 118 bus system; estimator heterogeneity; hierarchical state estimation; modified coordination technique; wide area network; wide area power system; Area measurement; Artificial neural networks; Monitoring; Power system dynamics; Power system interconnection; Power system modeling; Power system reliability; Power systems; State estimation; Wide area networks; Hierarchical state estimation; State estimation; delay state output; state estimation coordination; two level state estimation; wide area state estimation;
Conference_Titel :
Power Systems Conference: Advanced Metering, Protection, Control, Communication, and Distributed Resources, 2006. PS '06
Conference_Location :
Clemson, SC
Print_ISBN :
0-615-13280-4
DOI :
10.1109/PSAMP.2006.285422