Title :
Principle of matrix operation type protection relays
Author :
Zuo, Xiaofei ; Kuribayashi, Hidetsura ; Ohnishi, Himshi ; Tsuji, Kouiti
Abstract :
The system protection relays, which protect the transmission facilities for electrical power transmission from power stations to customers, are severely required to minimize fault sections and operate promptly so that system disturbance at faults can be reduced. It has been researched and studied that the application of operation theories to the system protection relays. It has been drawn the outlines of a new digital relay, which has vastly been improved in functionality. This papers reports the overview of the new digital relay. Kirchhoff´s first and second laws are used together as a basic principle. Transmission line faults are exactly simulated for the six lines of double circuits facilities. As much information as possible about faults is utilized.
Keywords :
Newton-Raphson method; power system relaying; power transmission faults; power transmission protection; relay protection; Kirchhoff laws; customers; double circuits facilities; electrical power transmission; fault sections minimisation; matrix operation type protection relays; power stations; transmission facilities; transmission line faults; Circuit faults; Digital relays; Power generation; Power system protection; Power system relaying; Power transmission; Power transmission lines; Protective relaying; Transmission line matrix methods; Transmission line theory;
Conference_Titel :
Transmission and Distribution Conference and Exhibition 2002: Asia Pacific. IEEE/PES
Print_ISBN :
0-7803-7525-4
DOI :
10.1109/TDC.2002.1178269