Title :
Line differential protection scheme modelling for underground 420 kV cable systems: EMTDC/PSCAD relays modelling
Author :
Sztykiel, Michal ; Bak, Claus Leth ; Wiechowski, Wojciech ; Dollerup, Sebastian
Author_Institution :
Dept. of Energy Technol., Aalborg Univ., Aalborg, Denmark
Abstract :
Based on the analysis of a specific relay model and an HVAC (High Voltage Alternating Current) cable system, a new approach to EMTDC/PSCAD modelling of protective relays is presented. Such approach allows to create complex and accurate relay models derived from the original algorithms. Relay models can be applied with various systems, allowing to obtain the most optimal configuration of the protective relaying. The present paper describes modelling methodology on the basis of Siemens SIPROTEC 4 7SD522/610. Relay model was verified experimentally with its real equivalent by both EMTP-simulated and real world generated current signals connected to the relay.
Keywords :
high-voltage engineering; power engineering computing; power transmission protection; relay protection; underground cables; underground transmission systems; EMTDC-PSCAD modelling; HVAC cable system; Siemens SIPROTEC 4 7SD522/610; current signal generation; high voltage alternating current cable system; line differential protection scheme modelling; protective relay model; underground cable system; voltage 420 kV; Computational modeling; EMTDC; Inductors; PSCAD; Power cables; Relays; Shunt (electrical); 7SD610; EMTDC/PSCAD relay model; SIPROTEC 4 7SD522; XLPE HVAC cable; line differential protection;
Conference_Titel :
Modern Electric Power Systems (MEPS), 2010 Proceedings of the International Symposium
Conference_Location :
Wroclaw
Print_ISBN :
978-83-921315-7-1
