Analysis of disturbances in power systems

Details Analysis of disturbances in power systems Analysis of disturbances in power systems

1992-06-19

1995-02-14

Hayes, Gail O.

Boots, shoes, and leggings

340664, 361 90, G06F 1522, G08B 2100, H02H 320

Patent

active

053901061

ABSTRACT:
A method for extracting, after data collection (DC) of a sampled analog signal (x(k)), a logical description of the signal by identification of the state (A, .phi.) of the signal, that is, the amplitude and phase of the signal, as well as an event (.DELTA.A, .DELTA..phi., k=h) which causes a change of a state at a sample k=h, that the identification (SE) is performed with the aid of a truncated general Fourier series with an exponentially decreasing constant, and that the identified parameters are supplied as input data to an expert system (ES) for forming the basis of a superordinate fault analysis together with binary data originating from other signals, the result thereof then being readable on a user interface (UI) (FIG. 6). ).

REFERENCES:
patent: 3813667 (1974-05-01), Smith
patent: 5115226 (1992-05-01), Schweitzer, III

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