METHOD FOR DETECTING FALSE SIGNAL OF POWER SISTEM

A method for detecting a false signal of a power system is disclosed. The method for detecting the false signal of the power system comprises multiple power facilities which receive electricity from a voltage source and a circuit breaker connected to at least one among the multiple power facilities and comprises: a step of modeling the power system by setting multiple monitoring sections including the power facilities and the circuit breaker connected to the power facilities; a step in which a controller detects opening and closing information which is information for the operation state of the circuit breaker using a circuit breaker side measuring instrument; a step in which the controller receives voltage/current measuring value of the power facilities from a measuring instrument of the power facilities and produces measuring information; and a step in which a controller compares opening and closing information of the circuit breaker with the measuring information of the power facilities and determines one signal between a circuit breaker opening and closing signal and a power system facility power signal as a false signal if current flows at each monitoring section estimated with the opening and closing information of the circuit breaker and the voltage/current measuring value of power facilities are not matched. [Reference numerals] (AA) Start; (BB) End; (S201) Electrical power system modeling; (S203) Switching information/ measuring information acquisition of monitoring sections; (S205) Error signal section detection; (S207) Error signal detection; (S209) Display in a display part