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- Title
Voltage stability preventive control using VMPI sensitivities.
- Authors
Kataoka, Yoshifumi; Watanabe, Masato; Sakaeda, Shingo; Iwamoto, Shinichi
- Abstract
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. © 2010 Wiley Periodicals, Inc. Electr Eng Jpn, 173(4): 28–37, 2010; Published online in Wiley Online Library (<URL>wileyonlinelibrary.com</URL>). DOI 10.1002/eej.21033
- Subjects
VOLTAGE regulators; ELECTRIC potential; ELECTRIC controllers; ELECTRIC power systems; PROXIMITY detectors; ELECTRIC current regulators
- Publication
Electrical Engineering in Japan, 2010, Vol 173, Issue 4, p28
- ISSN
0424-7760
- Publication type
Article
- DOI
10.1002/eej.21033