Title :
A novel mathematical morphology based anti-CT saturation criterion for generator differential protection
Author :
Zhang, Chao ; Lin, Xiangning ; Chen, Z. ; Bo, Z.Q. ; Redfern, M.A.
Author_Institution :
Wuhan Univ., China
Abstract :
This paper presents a new CT saturation block diagram for generator differential protection using a mathematical morphology operation to accurately detect the time difference between fault occurrence and differential current emergence instant. The simulation results show that the scheme can effectively prevent generator differential protection mal-operation due to current resulting from CT saturation.
Keywords :
diagrams; mathematical morphology; power generation faults; power generation protection; power system simulation; CT saturation block diagram; anti-CT saturation criterion; differential current emergence; fault occurrence; generator differential protection; mathematical morphology; protection mal-operation; simulation; time difference; Circuit faults; Fault currents; Fault detection; Impedance; Morphology; Power generation; Power system protection; Power system simulation; Protective relaying; Relays;
Conference_Titel :
Universities Power Engineering Conference, 2004. UPEC 2004. 39th International
Conference_Location :
Bristol, UK
Print_ISBN :
1-86043-365-0
