TY - GEN
T1 - Voltage stability assessment of a large power system
AU - Randhawa, Muhammad
AU - Sapkota, Bishnu
AU - Vittal, Vijay
AU - Kolluri, Sharma
AU - Mandal, Sujit
PY - 2008/9/29
Y1 - 2008/9/29
N2 - Modal analysis and reactive power reserve method are applied in the Entergy electrical system to find the buses and zones prone to voltage instability. In the modal analysis method, weak zones are identified by monitoring the participation factor of the buses in the critical modes. In the reactive power reserve method, reactive power reserves of the zones are monitored for single line outages, generator outages, and double line outages and the zones that have exhausted their reactive power reserves are identified as critical. The critical contingencies resulting in the smallest stability margins are also computed, and are ranked in the order of severity. The voltage stability assessment tool (VSAT) developed by Powertech Labs, is used to determine the weak zones and to determine the critical contingencies.
AB - Modal analysis and reactive power reserve method are applied in the Entergy electrical system to find the buses and zones prone to voltage instability. In the modal analysis method, weak zones are identified by monitoring the participation factor of the buses in the critical modes. In the reactive power reserve method, reactive power reserves of the zones are monitored for single line outages, generator outages, and double line outages and the zones that have exhausted their reactive power reserves are identified as critical. The critical contingencies resulting in the smallest stability margins are also computed, and are ranked in the order of severity. The voltage stability assessment tool (VSAT) developed by Powertech Labs, is used to determine the weak zones and to determine the critical contingencies.
KW - Contingency screening
KW - Eigenvalues
KW - Modal analysis
KW - Participation factor
KW - Reactive power margin
KW - Voltage stability
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U2 - 10.1109/PES.2008.4596336
DO - 10.1109/PES.2008.4596336
M3 - Conference contribution
AN - SCOPUS:52349114510
SN - 9781424419067
T3 - IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES
BT - IEEE Power and Energy Society 2008 General Meeting
T2 - IEEE Power and Energy Society 2008 General Meeting: Conversion and Delivery of Electrical Energy in the 21st Century, PES
Y2 - 20 July 2008 through 24 July 2008
ER -