Disturbances location and classification in the phase space

This paper proposes a scheme based on the embedding theorem to locate and classify the transient disturbances in power system signals. The disturbance signals are transformed to the phase space, where the normal part of the signal and the disturbance form two waveforms that can be distinguished from each other, and the location and classification are based on the information obtained from the embedded signal. The scheme has been tested on five different disturbances under different conditions, and simulation results show that it can accurately detect the disturbances and its performance is stable.