基于时间序列的国产化水电站计算机监控系统异常行为报警方法应用  

Research on the Abnormal Behavior Alarm Method of Computer Monitoring System of Domestic Hydropower Stations Based on Time Series

作　　者：李正凡 谭良良 杨渊 陈映喜 周喜 杨伟 LI Zheng-fan;TAN Liang-liang;YANG Yuan;CHEN Ying-xi;ZHOU Xi;YANG Wei(Huaneng Lancang River Hydropower Inc.,Kunming 650214,Yunnan Province,China;Nanjing Nanrui Able Engineering Technology Co.,Ltd.,Nanjing 211002,Jiangsu Province,China;Xi′an Thermal Power Research Institute Co.,Ltd.,Xiʹan 710054,Shaanxi Province,China)

机构地区：[1]华能澜沧江水电股份有限公司,云南昆明650214 [2]南京南瑞继保工程技术有限公司,江苏南京211002 [3]西安热工研究院有限公司,陕西西安710054

出　　处：《中国农村水利水电》2022年第12期222-226,共5页China Rural Water and Hydropower

摘　　要：目前国产化水电站计算机监控系统报警方法存在报警有效率低、误报率高、报警效率低等问题,难以保证系统正常运行。为保证国产化水电站计算机监控系统的安全稳定运行,以故障解列装置这一核心设备为例,提出了一种新的国产化水电站计算机监控系统异常行为报警方法,以时间序列为基础,通过构建时间序列符号转换模型描述采集装置运行时间序列数据的形态特征,结合特征识别技术和异常行为检测技术对装置的运行状态进行精准判断,预设报警线实现自动报警。实验结果表明,该报警方法的自适应能力强,平均有效报警率为94%,平均误报率为8%,报警效率约为7.8个/s,具有较高的报警性能和应用价值。At present,the alarm method of home-made computer monitoring system of hydropower station has such problems such as low alarm efficiency,high false alarm rate,and low alarm efficiency,which is difficult to ensure the normal operation of the system.In order to ensure the safe and stable operation of home-made computer monitoring system of hydropower station,this paper proposes a new abnormal behavior alarm method.Based on the time series,the time series data of the collection device is described by constructing a time series symbol conversion model.The morphological characteristics of the device are combined with feature recognition technology and abnormal behavior detection technology to accurately judge the operating state of the device,and the alarm line is preset to realize automatic alarm.Experimental results show that the alarm method has strong adaptability,with an average effective alarm rate of 94%,an average false alarm rate of 8%,and an alarm efficiency of about 7.8 units/s.It has high alarm performance and application value.

关 键 词：时间序列 异常行为分析 异常行为报警 

分 类 号：TM312[电气工程—电机]