TY - GEN
T1 - Impacts of protection system misoperation on the reliability of Turkish National Power Transmission System
AU - Ozdemir, Aydoǧan
AU - Bagriyanik, Mustafa
AU - Ilisu, Isa
AU - Gul, Omer
AU - Kaypmaz, Adnan
AU - Akkaya, Yener
PY - 2011
Y1 - 2011
N2 - This paper presents the analysis of relay system to identify the effects of misoperations on system reliability in the Thrace part of Turkish National Power Transmission System comprising 154 kV and 380 kV sub-systems. Since one of the main reasons of the cascading failures is the misoperation of the protection system, this study is concentrated on the analysis of relay system to minimize the risk of occurring cascading events as well as to improve the reliability level of the system. Initially, a detailed system model is constructed according to the collected system data and the protection system data such as relay types, relay settings etc. Simulations are then performed by an integrated power system analysis tool DigSilent Powerfactory software. The system is tested for predefined fault scenarios. Depending upon the consequences of misoperation of the protection system, cascading failure risks and decrease in the reliability level of the system are determined. Simulations and the calculations, cover the distance protection relays and over-current relays.
AB - This paper presents the analysis of relay system to identify the effects of misoperations on system reliability in the Thrace part of Turkish National Power Transmission System comprising 154 kV and 380 kV sub-systems. Since one of the main reasons of the cascading failures is the misoperation of the protection system, this study is concentrated on the analysis of relay system to minimize the risk of occurring cascading events as well as to improve the reliability level of the system. Initially, a detailed system model is constructed according to the collected system data and the protection system data such as relay types, relay settings etc. Simulations are then performed by an integrated power system analysis tool DigSilent Powerfactory software. The system is tested for predefined fault scenarios. Depending upon the consequences of misoperation of the protection system, cascading failure risks and decrease in the reliability level of the system are determined. Simulations and the calculations, cover the distance protection relays and over-current relays.
KW - maloperation of the protection system
KW - Protection system failures
KW - reliability
UR - http://www.scopus.com/inward/record.url?scp=84860676401&partnerID=8YFLogxK
U2 - 10.1109/APAP.2011.6180475
DO - 10.1109/APAP.2011.6180475
M3 - Conference contribution
AN - SCOPUS:84860676401
SN - 9781424496198
T3 - APAP 2011 - Proceedings: 2011 International Conference on Advanced Power System Automation and Protection
SP - 619
EP - 623
BT - APAP 2011 - Proceedings
T2 - 2011 International Conference on Advanced Power System Automation and Protection, APAP 2011
Y2 - 16 October 2011 through 20 October 2011
ER -