Development of a substation digital protection and control system using fiber-optic local area network

Author

Suzuki, Mamoru ; Matsuda, Takayuki ; Ohashi, Nobufumi ; Sano, Yoshihiro ; Tsukui, Ryoichi ; Yoshida, Takashi

Author_Institution

Tokyo Electr. Power Co. Inc., Japan

Volume

4

Issue

3

fYear

1989

fDate

7/1/1989 12:00:00 AM

Firstpage

1668

Lastpage

1675

Abstract

A substation protection and control system was developed and has been under trial use at a 50 kV substation. The system´s digital protection and control equipment are located close to the outdoor power apparatus, and they are linked by an optical local area network (LAN). An IEEE 802.4 token-passing bus was used as the protocol of the LAN system. Optical star couplers were used for the physical layer. A specially designed synchronous sampling mechanism is also applied to the token bus to make the system more effective. Three manufacturers fabricated terminal equipment, which was linked by the optical LAN. Their interoperability was verified

Keywords

optical links; power system computer control; power system protection; protocols; substations; token networks; 50 kV; LAN; control system; fiber-optic local area network; power apparatus; power system computer control; power system protection; protocol; substation; synchronous sampling; token-passing bus; Control equipment; Control systems; Couplers; Digital control; Local area networks; Optical fiber LAN; Optical fiber networks; Power system protection; Protocols; Substation protection;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.32657

Filename

32657