Title :
A comparative study of the methods of inclusion of PMU current phasor measurements in a hybrid state estimator
Author :
Chakrabarti, Saikat ; Kyriakides, Elias ; Ledwich, Gerard ; Ghosh, Arindam
Author_Institution :
Queensland Univ. of Technol., Brisbane, QLD, Australia
Abstract :
The paper compares three different methods of inclusion of current phasor measurements by phasor measurement units (PMUs) in the conventional power system state estimator. For each of the three methods, comprehensive formulation of the hybrid state estimator in the presence of conventional and PMU measurements is presented. The performance of the state estimator in the presence of conventional measurements and optimally placed PMUs is evaluated in terms of convergence characteristics and estimator accuracy. Test results on the IEEE 14-bus and IEEE 300-bus systems are analyzed to determine the best possible method of inclusion of PMU current phasor measurements.
Keywords :
matrix algebra; phase measurement; power system measurement; power system state estimation; IEEE 14-bus system; IEEE 300-bus systems; PMU current phasor measurements; convergence characteristics; hybrid state estimator; inclusion method; phasor measurement units; power system state estimator; Current phasor; hybrid state estimator; measurement uncertainty; optimal placement; phasor measurement unit;
Conference_Titel :
Power and Energy Society General Meeting, 2010 IEEE
Conference_Location :
Minneapolis, MN
Print_ISBN :
978-1-4244-6549-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2010.5589582
