变电站设备状态智能识别系统技术研究

Research on Technique of Intelligent Recognition System for Equipment Status in Substation

针对目前变电站采用人工巡检判断设备状态的方式存在作业效率低、工作质量不高、巡检人员的安全难以保障的问题,集成应用开关状态综合判断技术、刀闸状态综合判断技术、智能巡检技术和视频联动技术等关键技术,研制了变电站设备状态智能识别系统,通过与数据采集与监视控制(SCADA)系统的信息交互,实现了变电站开关、刀闸设备状态的远程智能识别。该系统可在变电设备倒闸操作、定期巡检、专项巡检以及日常设备状态监视中代替人工巡检开关、刀闸设备状态,及时发现并预警设备状态隐患,提高了巡检效率和质量,降低了运行人员的劳动强度,保障了人身及设备安全。通过在500 kV文山变电站的应用实例表明,应用该系统在单台主变停电倒闸操作中可节省5.63工时,验证了系统的实用性和有效性。

In view of the problems of low efficiency,low quality and insecure personal safety of manual checking equipment in substation,the key technologies such as comprehensive judgment of switch status,comprehensive judgment of disconnect switch status,intelligent identification and intelligent patrol inspection and video linkage were integrated,an intelligent recognition system for equipment status in substation was developed.The remote intelligent recognition of switch and switch equipment states in substation was realized by information interaction with supervisory control and data acquisition(SCADA)system.The system can replace manual inspection status of switch and disconnect switch in switching operation,regular inspection,special inspection and daily equipment condition monitoring,so as to find and warn the hidden danger of the equipment status in time.It improves the efficiency and quality of substation equipment operation and maintenance,reduces the labor intensity of operating personnel,guarantees personal and equipment safety.By applying on 500 kV Wenshan substation,the system can save 5.63 man hours in the power off operation of single main transformer,the effectiveness of substation safety monitoring system is verified.