Research on Secondary Equipment Centralized Security Operation and Maintenance and Key Technologies of Active Perception, Diagnosis and Early Warning

Abstract

[Introduction] Aiming at the current problems of the continuous update of the security requirements and low efficiency and uncontrollable effects of security rectification on-site operations for the power monitoring system, and the status quo of large area off-grid operation of some secondary equipment without effective rectification methods, secondary equipment centralized security operation and maintenance and key technologies of active perception, diagnosis and early warning are studied. [Method] Compliant grid-connected devices were unified deployed in substations, the technologies of deep belief nets multi-class support vector machine intrusion detection and adaptive probabilistic marking scheme IP traceback were used to filter recording data, active percept and retrospective diagnosis invaded threats, the risk early warning and comprehensive assessment technology based on combining with threat and adversarial analysis were adopted to carry out impact assessment and rating, and the existing recording master station system was used to expand the security operation and maintenance management business to form centralized operation and maintenance management model. [Result] Practical results show that this method can achieve the goals that the security system of substation secondary equipment is centralized managed and efficiency of operation and maintenance is higher. [Conclusion] The proposed method is effective and feasible to solve the problem of on-site security rectification of secondary equipment combined with the Guangxi power grid operation case.

Keywords

• secondary equipment
• security operation and maintenance
• active perception
• intrusion detection
• traceback