Title :
LAN congestion scenario and performance evaluation
Author :
Tengdin, John T. ; Simon, Mark S. ; Sufana, Charles R.
Author_Institution :
San Clemente, CA, USA
fDate :
31 Jan-4 Feb 1999
Abstract :
An actual multi-fault event was examined to determine what messages from protective relays would be generated on a substation Ethernet LAN. The event was caused by a tornado collapsing a quad built tower, resulting in simultaneous faults on two 345 kV lines and two 138 kV lines. Various means of combining relaying messages were examined to potentially reduce the traffic. The issue of message simultaneity was simulated to determine its effect on potential message collisions and LAN performance. The performance of 10 and 100 MB shared and switched hub LANs was simulated at various message levels. The performance requirement was to deliver messages, application to application, in 4 milliseconds. The simulations showed that a 10 MB shared hub LAN met the requirement up to 15 messages. A 100 MB shared hub LAN and both 10 and 100 MB switched hub LANs met the 4 ms requirement up to 100 messages.
Keywords :
local area networks; power engineering computing; power system faults; power system protection; relay protection; substations; 138 kV; 345 kV; 4 ms; GOMSFE; GOOSE; LAN congestion scenario; LAN performance evaluation; message simultaneity; multi-fault event; potential message collisions; protective relays message generation; quad built tower collapse; relaying messages combining; shared hub LAN; substation Ethernet LAN; switched hub LAN; tornado; Ethernet networks; Local area networks; Microprocessors; Packaging; Poles and towers; Protective relaying; Senior members; Substation protection; Traffic control; USA Councils;
Conference_Titel :
Power Engineering Society 1999 Winter Meeting, IEEE
Print_ISBN :
0-7803-4893-1
DOI :
10.1109/PESW.1999.747292
