شماره ركورد كنفرانس :
3519
عنوان مقاله :
A New Algorithm to Detect Power Swing and Improve Operation of Distance Relays Zone 3 by Use Of PMU
Author/Authors :
M. Dehshiri Electrical and Computer Engineering - Faculty Shahid Beheshti University Tehran , H.K. Karegar Electrical and Computer Engineering - Faculty Shahid Beheshti University Tehran , H. Barzegari Electrical and Computer Engineering - Faculty Shahid Beheshti University Tehran
كليدواژه :
distance relay zone 3 , phasor measurment unit(PMU , power swing detection
عنوان كنفرانس :
هشتمين كنفرانس تخصصي حفاظت و كنترل سيستم هاي قدرت
چكيده لاتين :
Cascaded tripping of transmission lines due to mal-operation of zone 3 distance relays is main reason of blackouts worldwide and the main reason ofthese mal-operations is power swing. This paper presents a new approach to power swing detection by using synchronized phasor measurements data andprevent undesirable zone 3 distance relays tripping during stable power swings. Results are presented based on simulation studies carried out on a 400 kVsystem, using EMT DC/PSCAD. The PMU is simulated in MATLAB.
