Automatic Generation and Audit Method of Substation Five-Prevention Logic Based on Typical Interval Graphization

The five-prevention logic is crucial for preventing misoperation in substations. The writing and audit of the existing five-prevention logic rely on manual labor, with low efficiency and security risks. Therefore, this paper proposes an automatic generation and audit method of substation five-prevention logic based on typical interval graphization. A database containing device names and circuit information is developed, and two core algorithm modules, topology analysis, and logic generation are established. Moreover, this method is integrated into the anti-misoperation system to achieve standardized and centralized management of the five-prevention ledger and logic for each substation. In addition, it also has the function of intelligent inspection and report output with five-prevention logic. The actual engineering application results show that the system has high accuracy, and the debugging time has been reduced from 6 h manually to 1 min. This method can assist in the intelligent construction of substations.