智能变电站监控信息全链路监测及故障诊断方法

A Method for Full-link Monitoring and Fault Diagnosis of Supervisory and Control Information in Smart Substation

摘要:

针对监控信息传输环节缺陷难以发现，且缺陷的处置高度依赖于调试人员的经验和技术水平的问题，提出了一种智能变电站监控信息全链路监测及故障诊断方法。该方法通过建立监控信息的全链路配置信息流，实现监控信息在全站系统配置描述文件、远动配置描述文件和监控信息表中的一致性校核；通过建立在变电站各通信层之间传送过程的监控信息流，实现监控信息的全链路监测；并基于全链路配置信息流与监控信息流的比对实现监控信息传输异常的诊断。通过实例分析，验证了所提方法能有效定位配置错位、二次回路接线错位等故障点，提高了监控信息传输缺陷排查的效率，具有一定的实用价值。

Abstract:

For solving the problem that the defects in the transmission link of supervisory and control information are difficult to be found and the solution of defects is highly dependent on the experiences and technical level of commissioning workers, a method for full-link monitoring and fault diagnosis of supervisory and control information in smart substation is introduced. By establishing the full-link configuration information flow of supervisory and control information, the consistency check among system configuration description, remote configuration description and monitoring information table is realized. By establishing the real-time supervisory and control information flow during the transmission of supervisory and control information between communication layers of substation, the full-link monitoring of supervisory and control information is realized. And intelligent diagnosis of abnormal transmission of supervisory and control information is realized based on the matching of full-link configuration information flow and real-time supervisory and control information flow. Through case analysis, it is verified that the proposed method can effectively locate the fault points such as the misalignment of configuration and secondary circuit wiring, and improves the efficiency of defect investigation in transmission link of supervisory and control information, which has certain practical value.