Title:
電力系統の系統安定度制御方法及びシステム
Document Type and Number:
Japanese Patent JP4069209
Kind Code:
B2
Abstract:
In the present invention, at each of the plurality of points in a wide area, the phase of voltage at a power supply outlet is detected. Data including the phase information and time information are sent to a data server. With one end of the system used as a phase angle reference, the data server observes phase differences at the other end and at the center of the system. The data server then extracts an inter-system fluctuation component from an obtained fluctuation, and constructs an expanded combined vibration model for data sets obtained through first-order and second-order differentiations of the component. The expanded combined vibration model is obtained by expanding a combined vibration model to include a known model of a PSS provided for a generator of interest. Time-series data regarding the state variables of the PSS at the time of construction of the expanded combined vibration model are obtained, and PSS parameters are determined directly therefrom by use of the expanded combined vibration model, whereby stabilization of the dominant modes is achieved.
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Inventors:
Yasunori Mitani
Masayuki Watanabe
Masayuki Watanabe
Application Number:
JP2007504638A
Publication Date:
April 02, 2008
Filing Date:
January 20, 2006
Export Citation:
Assignee:
Kyushu Institute of Technology
International Classes:
H02J3/24; H02J3/00; G05F1/66
Domestic Patent References:
| JP2004282882A | ||||
| JP64081688A | ||||
| JP63181619A |
Attorney, Agent or Firm:
Yuzuru Okawa