Title :
The Effect of Phasor Measurement Units on the Accuracy of the Network Estimated Variables
Author :
Sangrody, H. Abdollahzadeh ; Ameli, M.T. ; Meshkatoddini, M.R.
Author_Institution :
Power & Water Univ. of Technol., Tehran, Iran
Abstract :
The most commonly used weighted least square state estimator in power industry is nonlinear and formulated by using conventional measurements such as line flow and injection measurements. PMUs (Phasor Measurement Units) are gradually adding them to improve the state estimation process. In this paper the way of corporation the PMU data to the conventional measurements and a linear formulation of the state estimation using only PMU measured data are investigated. Six cases are tested while gradually increasing the number of PMUs which are added to the measurement set and the effect of PMUs on the accuracy of variables are illustrated and compared by applying them on IEEE 14, 30 test systems.
Keywords :
least squares approximations; phase measurement; power system measurement; power system state estimation; IEEE 14 test systems; IEEE 30 test systems; PMU; injection measurements; line flow measurements; network estimated variables; phasor measurement unit; power industry; state estimation process; weighted least square state estimator; Fluid flow measurement; Global Positioning System; Nonlinear equations; Phasor measurement units; Power measurement; Power system measurements; Power system security; State estimation; System testing; Voltage; conventional state estimation; hybrid state estimation; linear formulation; phasor measurement unit;
Conference_Titel :
Developments in eSystems Engineering (DESE), 2009 Second International Conference on
Conference_Location :
Abu Dhabi
Print_ISBN :
978-1-4244-5401-3
Electronic_ISBN :
978-1-4244-5402-0
DOI :
10.1109/DeSE.2009.45
