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

Abstract

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 the equipment 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.

Description

technical field [0001] The invention relates to the field of power system scheduling automation, in particular to the technical field of power system topology error prevention. Background technique [0002] The safe operation of the power system is very important. The correct operation of electrical equipment is an important guarantee for the safe operation of the power system. Therefore, it is necessary to adopt certain technical methods to effectively prevent misoperation. In the power system, the following five kinds of misoperations are mainly prevented: (1) to prevent the disconnection switch with load; (2) to prevent false disconnection and false closure of the circuit breaker; (5) Prevent mistakenly entering the live isolation area. Referred to as "five defenses". [0003] At present, the anti-malfunction system of the substation mainly includes microcomputer five defenses and topology five defenses. The five defenses of the microcomputer are realized by the mainte...

AI Technical Summary

Problems solved by technology

However, this method obtains the status of electrical islands by analyzing the topology of the entire network, which is not very pertinent and the analysis speed is also limited; it is mainly based on the error prevention rule base, and the rule base has a large amount of maintenance, low efficiency and self-adaptability Not strong

Images