Two stage state estimator with phasor measurements

Author

Jamuna, K. ; Swarup, K. Shanti

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., Chennai, India

fYear

2009

fDate

27-29 Dec. 2009

Firstpage

1

Lastpage

5

Abstract

State estimator is an important tool for online monitoring, analysis and control of power systems. With the increased use of phasor measurement units in a power grid, utilization of synchro phasor measurements in State Estimation (SE) becomes essential. Conventional State Estimation (CSE) has been done from measurements obtained by Supervisory Control And Data Acquisition (SCADA) systems. Linear State Estimation (LSE) is done using phasor measurements alone. The paper presents a hybrid method called Two Stage State Estimation (TSSE), wherein the states of the system are estimated by incorporating both the SCADA measurements and phasor measurements. Simulations are done on IEEE 14 bus, IEEE 30 bus and IEEE 118 bus systems and results are compared.

Keywords

SCADA systems; computerised monitoring; phase measurement; power grids; power system control; power system state estimation; IEEE 118 bus systems; IEEE 14 bus; IEEE 30 bus; SCADA; online monitoring analysis; power grid; power system control; state estimator; supervisory control and data acquisition system; synchro phasor measurements; Control system analysis; Control systems; Monitoring; Phasor measurement units; Power system analysis computing; Power system control; Power system measurements; Power systems; SCADA systems; State estimation; Linear State Estimation; SCADA; Synchro Phasor Measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Systems, 2009. ICPS '09. International Conference on

Conference_Location

Kharagpur

Print_ISBN

978-1-4244-4330-7

Electronic_ISBN

978-1-4244-4331-4

Type

conf

DOI

10.1109/ICPWS.2009.5442707

Filename

5442707