A software-only PTP synchronization for power system state estimation with PMUs

Author

Lixia, M. ; Benigni, A. ; Flammini, A. ; Muscas, C. ; Ponci, F. ; Monti, A.

Author_Institution

Dept. of Electr. & Electron. Eng., Univ. of Cagliari, Cagliari, Italy

fYear

2011

fDate

10-12 May 2011

Firstpage

1

Lastpage

6

Abstract

Synchronized Phasor Measurement Units (PMUs) are becoming a key element of monitoring, protection, control and state estimation applications in power systems and are the basis for the implementation of Wide Area Monitoring Systems (WAMSs). This paper investigates the possibility of using a software-only PTP (Precision Time Protocol) synchronization method to synchronize different Phasor Measurement Units (PMUs) and how this synchronization impacts the State Estimation. In this context, as a case study, the output data of the PMUs have been used to estimate the state of a power system of reduced size and complexity. A laboratory experimental setup has been built to evaluate the performance achievable with the proposed synchronization solution. The results thus obtained and the performance analysis are discussed in this paper.

Keywords

phase measurement; power system measurement; protocols; synchronisation; performance analysis; power system state estimation; software only precision time protocol synchronization; synchronization solution; synchronized phasor measurement units; wide area monitoring systems; Current measurement; Phasor measurement units; State estimation; Substations; Synchronization; Voltage measurement; IEEE 1588; IEEE 37.118; Phasor Measurement Unit; State Estimation; Synchrophasors;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE

Conference_Location

Binjiang

ISSN

1091-5281

Print_ISBN

978-1-4244-7933-7

Type

conf

DOI

10.1109/IMTC.2011.5944252

Filename

5944252