TY - GEN
T1 - A comparison of local vs. sensory, input-driven, wide area reactive power control
AU - Stahlhut, Jonathan W.
AU - Heydt, Gerald T.
AU - Kyriakides, Elias
PY - 2007/12/1
Y1 - 2007/12/1
N2 - In the evolution of wide area measurement systems (WAMS) to wide area control systems (WACS), several subsystems can be considered. One such subsystem to be considered under WACS is shunt capacitor switching strategies to provide reactive power support. Many shunt capacitors are operated using local voltage control, but WACS controlled shunt capacitors are operated remotely using a system wide strategy. A WACS control of capacitor switching is proposed based on indices that assess bus voltage magnitude and complex line flows. The switching scheme which produces operationally acceptable bus voltage magnitudes or line power flows, or a combination of the two phenomena, is used for global control of reactive power support. The differences between WACS and local control are illustrated utilizing the IEEE 57 bus system as a test bed. A strategy based on the grouping of capacitors for WACS control is illustrated and compared to local control. Results show that WACS has better results when the number of bus voltage magnitudes out of range and total system losses are considered as assessment measures of control effectiveness.
AB - In the evolution of wide area measurement systems (WAMS) to wide area control systems (WACS), several subsystems can be considered. One such subsystem to be considered under WACS is shunt capacitor switching strategies to provide reactive power support. Many shunt capacitors are operated using local voltage control, but WACS controlled shunt capacitors are operated remotely using a system wide strategy. A WACS control of capacitor switching is proposed based on indices that assess bus voltage magnitude and complex line flows. The switching scheme which produces operationally acceptable bus voltage magnitudes or line power flows, or a combination of the two phenomena, is used for global control of reactive power support. The differences between WACS and local control are illustrated utilizing the IEEE 57 bus system as a test bed. A strategy based on the grouping of capacitors for WACS control is illustrated and compared to local control. Results show that WACS has better results when the number of bus voltage magnitudes out of range and total system losses are considered as assessment measures of control effectiveness.
KW - Reactive power control
KW - Sensors
KW - Shunt capacitors
KW - Wide area control systems
KW - Wide area measurement systems
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U2 - 10.1109/PES.2007.385530
DO - 10.1109/PES.2007.385530
M3 - Conference contribution
AN - SCOPUS:42549130378
SN - 1424412986
SN - 9781424412983
T3 - 2007 IEEE Power Engineering Society General Meeting, PES
BT - 2007 IEEE Power Engineering Society General Meeting, PES
T2 - 2007 IEEE Power Engineering Society General Meeting, PES
Y2 - 24 June 2007 through 28 June 2007
ER -