Wide-area current differential backup protection employing broadband communications and time transfer systems

Author

Serizawa, U. ; Myoujin, M. ; Kitamura, K. ; Sugaya, N. ; Hori, M. ; Takeuchi, A. ; Shuto, I. ; Inukai, Motoharu

Author_Institution

Central Res. Inst. of Electr. Power Ind., Tokyo, Japan

Volume

13

Issue

4

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

1046

Lastpage

1052

Abstract

As power systems grow larger, it is becoming difficult to achieve reach and time coordination in backup protection when using distance relays. To cope with those problems, current differential backup protection for a busbar and transmission circuits connected to that busbar on an inter-station or wide-area basis is proposed. The proposed system can operate better than conventional systems with respect to operation time, section selectivity, etc. A system configuration is also proposed to utilize ATM transmission networks and time synchronous systems which make the construction and operation of the proposed wide-area protection system easy and flexible

Keywords

asynchronous transfer mode; broadband networks; power system control; power system protection; power system relaying; relay protection; telecontrol; ATM transmission networks; broadband communications; busbar; current differential backup protection; operation time; section selectivity; time coordination; time synchronous systems; time transfer systems; transmission circuits; wide-area power system protection; Asynchronous transfer mode; Broadband communication; Circuits; Global Positioning System; Load flow; Power system protection; Power system relaying; Power transmission lines; Protective relaying; Substation protection;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.714445

Filename

714445