RT24 India | Coherency Identification and Prediction of Out of Step Condition in Power System

Power systems are prone to disturbances due to which oscillations are triggered. Similar type of oscillations in power systems are grouped as coherent groups. The identification of coherency in large power system is vital in stability studies as they tend to separate into different islands in case of uncontrolled islanding with out of step condition. To prevent the uncontrolled islanding, coherency detection and prediction of out of step condition in real time is required, so that Remedial Action Scheme can be triggered to revert back to stability or split the system into stable groups. A coherency detection method and prediction of Out of step in real time based on Phasor Measurement Unit have been developed and tested in OPAL RT HYPERSIM environment.