Impact of PMU´s on robust estimators in the presence of gross errors

Author

Habiballah, Ibrahim Omar

Author_Institution

King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia

fYear

2015

fDate

3-6 May 2015

Firstpage

1012

Lastpage

1017

Abstract

State estimation is a key factor in Energy Management System (EMS). It provides secure control and operation of power system networks. The incorporation of synchronized phasor measurement units (PMUs) is becoming a reality in many modernized electric power utilities. The conventional measurements as well as the phasor measurements are vulnerable to gross errors due to communication noise, incorrect sign convention, measurement device failure ...etc. This paper presents the impact of incorporating phasor measurement units (PMU´s) on three different estimators: the weighted least square (WLS), the least absolute value (LAV), and the least median (LM). The performance of these estimators is studied under different set of measurements with gross errors.

Keywords

estimation theory; least squares approximations; phasor measurement; EMS; LAV method; LM method; PMU; WLS method; communication noise; energy management system; gross error measurement; least absolute value method; least median method; modernized electric power utility; phasor measurement unit; power system network; robust estimator; secure control; sign convention; state estimation; synchronization; weighted least square method; Conferences; Handheld computers; Phasor measurement units; Q measurement; Robustness; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2015 IEEE 28th Canadian Conference on

Conference_Location

Halifax, NS

ISSN

0840-7789

Print_ISBN

978-1-4799-5827-6

Type

conf

DOI

10.1109/CCECE.2015.7129413

Filename

7129413