TY - JOUR

T1 - Voltage stability preventive control using VMPI sensitivities

AU - Kataoka, Yoshifumi

AU - Watanabe, Masato

AU - Sakaeda, Shingo

AU - Iwamoto, Shinichi

PY - 2010/12

Y1 - 2010/12

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), which defines the voltage stability from the point of view of the voltage magnitude limits. Many previous papers dealing with voltage stability preventive control have used control devices which take continuous values, such as static var compensators, but real power systems mainly utilize voltage control devices which take discrete values. Hence, in this paper, we propose voltage stability preventive control using the VMPI sensitivities in order to control devices which take discrete values. We generally require speed for preventive control in order to use it on line, but the VMPI takes time due to the performance of optimal power flow calculations. Consequently, we propose a practical voltage stability preventive control method using a calculation with initial estimates of the control devices and estimation of the VMPI sensitivities, which requires less calculation time. Simulations using the IEEJ West 30-machine 115-bus system have verified 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), which defines the voltage stability from the point of view of the voltage magnitude limits. Many previous papers dealing with voltage stability preventive control have used control devices which take continuous values, such as static var compensators, but real power systems mainly utilize voltage control devices which take discrete values. Hence, in this paper, we propose voltage stability preventive control using the VMPI sensitivities in order to control devices which take discrete values. We generally require speed for preventive control in order to use it on line, but the VMPI takes time due to the performance of optimal power flow calculations. Consequently, we propose a practical voltage stability preventive control method using a calculation with initial estimates of the control devices and estimation of the VMPI sensitivities, which requires less calculation time. Simulations using the IEEJ West 30-machine 115-bus system have verified the effectiveness of the proposed method.

KW - power system

KW - preventive control

KW - proper voltage range

KW - VMPI sensitivity

KW - voltage stability index VMPI

UR - http://www.scopus.com/inward/record.url?scp=78649546035&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78649546035&partnerID=8YFLogxK

U2 - 10.1002/eej.21033

DO - 10.1002/eej.21033

M3 - Article

AN - SCOPUS:78649546035

VL - 173

SP - 28

EP - 37

JO - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

JF - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)

SN - 0424-7760

IS - 4

ER -