智能变电站保护设备可视化运维系统研究与应用

在智能变电站运维检修中存在二次回路及运维信息展示不直观,安全措施实施概念模糊等问题,不利于及时发现保护设备安全隐患以及缺陷隔离,易导致电网事故。文中提出了一种适用于智能变电站的保护设备可视化运维系统设计思路,实现保护设备在线监测诊断,缺陷辅助隔离及安全措施防误预警,该系统应用于宁夏750 kV沙湖变工程、G20保电工程及多个智能变电站,现场实际应用结果表明,该系统可以为智能变电站二次系统日常运维、异常处理、事故分析等工况提供多维度可视化信息支撑及安全操作依据。

Research and Application of Visualization Operation and Maintenance System for Intelligent Substation Protection Equipment

In the operation and m aintenance of in tellig en t su b statio n,there are problem s such as secondary circuit inform ation and operation and m aintenance inform ation display are not intuitive,and the im plem entation of security m easures is vague in operation and m aintenance.This is not conducive to the timely detection of the hidden dangers of the protection equipment and the isolation of defects,and also easily lead to grid accidents.This paper proposes a design idea of a visualized operation and m aintenance system for protection equipm ent for intelligent substations.The system can realize functions such as o n-lin e monitoring and diagnosis of protection equipm ent,auxiliary isolation of defects,and prevention of false alarms for security m easures.The system has been applied to many smart substations such as the 750 kV Shahu Substation Project in Ningxia and the G20 Power Substation Project.The actual application results on the site show that the system can provide m ulti-dim ensional visual information support and safe operation basis for the daily operation and m aintenance,abnormal treatment and accident analysis of the secondary system of the intelligent substation.