Topology error-preventing checking method based on intelligent identification of state of equipment

The invention provides a topology error-preventing checking method based on intelligent identification of a state of equipment. The method comprises the following steps of: based on power grid real-time data, combining an SCADA (Supervisory Control and Data Acquisition) monitoring system to carry out object-oriented partial topology analysis to obtain information and real-time opening/closing states of a circuit breaker, an isolation switch, a bypass disconnecting link/earth wire in an equipment gap; and then, obtaining the state of electrical equipment through a logic analysis and analyzing whether the state of the equipment is normal or not; and obtaining influences to a power grid by equipment operations through analyzing changes of a power system before and after the equipment operations, so as to calculate a checked result and give out a prompt to realize the topology error-preventing checking. According to the invention, an intelligent identification function of the state of theequipment is realized and operation conditions of the equipment gap can be monitored in real time; once erroneous states are found, the system sends out an alarming prompt to accelerate a user to find and correct errors, so as to ensure the safe operation of the power grid. By comparing the changes of the power grid before and after the equipment operations to carry out checking, the accuracy of checking operations is ensured.