Disturbance Detection Approach from Power System PMU data Based on Mathematical Morphology

To ensure the safe operation of power system,operators must obtain timely knowledge of the power system disturbance and take appropriate countermeasures.This paper proposes an approach for detecting the disturbance based on mathematical morphology.The principle of mathematical morphology is produced;the selection of structural elements in disturbance detection is analyzed;the whole working flow of disturbance detection is formulated.Finally,simulation calculation and various detected disturbance data are used to verify that the approach can exactly and effectively detect the disturbance from the power system PMU signals,showing high practical value.