A METHOD FOR RECOGNIZING CONTINGENCIES IN A POWER SUPPLY NETWORK

摘要

A monitoring system adapted to recognize a contingency in a power supply network, PSN, (2), the monitoring system (1) comprising in-field measurement devices (3) adapted to generate measurement data (MD) of said power supply network (2) and a processing unit (4) adapted to process the measurement data (MD) generated by the in-field measurement devices (3) of said power supply network (2) by using a local network state estimation model (LNSM) to calculate local network state profiles (LNSPs) used to generate a global network state profile (GNSP), wherein said processing unit (4) is further adapted to process the measurement data (MD) generated by the in-field measurement devices (3) of said power supply network (2) to provide a relevance profile (RP) comprising for the in-field measurement devices (3) a relevance distribution indicating a probability where the origin of a contingency within the power supply network, PSN, (2) resides, wherein the processing unit (4) is further adapted to compute a similarity between a candidate contingency profile (CCP) formed by the generated global network state profile (GNSP) and by the calculated relevance profile (RP) and reference contingency profiles, rCP, stored in a reference contingency database (5) of said monitoring system (1) to identify the reference contingency profile, rCP, having the highest computed similarity as the recognized contingency within the power supply network, PSN, (2).