Method for providing a signal characterizing the central position of pendulum type oscillations

摘要

The system allows the oscillation centre to be extracted from a pendulum signal in an electric energy supply network, by determining an impedance value curve from detected entry and exit interface points. The oscillation centre point is determined from the intersection point (S3) of each curve with a line (H) between the halfway points of the release characteristic for the near and distant ranges (2,3)