Design of Frequency Adjustment Algorithm for Time Synchronization of Substation Automation System According to IEC 61850 Standard

Author

Yi, Na ; He, Peng ; Yi, Yawen

Author_Institution

Coll. of Electr. & Inf., Three Gorges Univ., Yichang

fYear

2009

fDate

27-31 March 2009

Firstpage

1

Lastpage

4

Abstract

Time synchronization of Substation Automation System (SAS) based on IEC61850 is studied in this paper. According to the request of time synchronization in SAS, the Network Time Protocol (NTP) is applied to SAS. Following the idea that the time offset is essentially caused by the frequency of clock itself so that it can be used for time synchronization with little or no additional cost, a new algorithm is presented, which adopts statistical technique to adjust the system clock frequency. The experimental results show that our algorithm has good performance to reduce the access frequency of time server and smooth time curves as well as meet the requirement of time synchronization in substation level.

Keywords

IEC standards; substation automation; synchronisation; IEC 61850 standard; frequency adjustment algorithm; network time protocol; substation automation system; time synchronization; Algorithm design and analysis; Clocks; Frequency measurement; Frequency synchronization; IEC standards; Position measurement; Substation automation; Synthetic aperture sonar; Time measurement; White noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference, 2009. APPEEC 2009. Asia-Pacific

Conference_Location

Wuhan

Print_ISBN

978-1-4244-2486-3

Electronic_ISBN

978-1-4244-2487-0

Type

conf

DOI

10.1109/APPEEC.2009.4918267

Filename

4918267