TY - JOUR
T1 - Voltage stability preventive control using VMPI sensitivities
AU - Kataoka, Yoshifumi
AU - Watanabe, Masato
AU - Sakaeda, Shingo
AU - Iwamoto, Shinichi
PY - 2008
Y1 - 2008
N2 - In power systems the proper voltage ranges are predetermined in the individual voltage classes. In order to maintain the proper voltage ranges, we propose the voltage stability index VMPI (Voltage Margin Proximity Index) in this paper which defines voltage stability from the point of view of voltage magnitude limits. Many conventional papers dealing with voltage stability preventive control use control devices which take continuous values e.g. static var compensators, whereas actual power systems mainly utilize voltage control devices which take discrete values. Hence, in this paper, we propose a voltage stability preventive control using VMPI sensitivities in order to control devices which take discrete values. We generally require speed for preventive controls in order to use it on-line, however VMPI takes time due to running optimal power flow calculations. Consequently, we propose a practical voltage stability preventive control using the calculation with initial estimates of control devices and estimation of VMPI sensitivities, which require less calculation time. Simulations are run using the IEEJ west 30 machine 115 bus system to verify the effectiveness of the proposed method.
AB - In power systems the proper voltage ranges are predetermined in the individual voltage classes. In order to maintain the proper voltage ranges, we propose the voltage stability index VMPI (Voltage Margin Proximity Index) in this paper which defines voltage stability from the point of view of voltage magnitude limits. Many conventional papers dealing with voltage stability preventive control use control devices which take continuous values e.g. static var compensators, whereas actual power systems mainly utilize voltage control devices which take discrete values. Hence, in this paper, we propose a voltage stability preventive control using VMPI sensitivities in order to control devices which take discrete values. We generally require speed for preventive controls in order to use it on-line, however VMPI takes time due to running optimal power flow calculations. Consequently, we propose a practical voltage stability preventive control using the calculation with initial estimates of control devices and estimation of VMPI sensitivities, which require less calculation time. Simulations are run using the IEEJ west 30 machine 115 bus system to verify the effectiveness of the proposed method.
KW - Power system
KW - Preventive control
KW - Proper voltage range
KW - VMPI sensitivity
KW - Voltage stability index VMPI
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U2 - 10.1541/ieejpes.128.1320
DO - 10.1541/ieejpes.128.1320
M3 - Article
AN - SCOPUS:72549091662
VL - 128
JO - IEEJ Transactions on Power and Energy
JF - IEEJ Transactions on Power and Energy
SN - 0385-4213
IS - 11
ER -