摘要
针对传统故障诊断由于未考虑在智能变电站保护或控制故障过程中的信息关联而导致只能进行设备物理层面或通信链路故障诊断与定位等问题,文章对反应保护或控制功能的信息集合进行梳理,分别建立包含事件报文序列和物理设备状态等因素的保护与控制功能Petri模型与能够推理出设备各子功能状态的Petri子网,并通过网络报文获知故障时各信息状态,从而进行基于Petri网模型的保护与操作控制故障诊断与故障位置推理,其诊断与定位结果能够反映设备逻辑功能的缺陷。实例证明该方法在智能变电站保护与操作控制过程中的故障诊断与定位起到良好的效果。
In view of the fact that traditional fault diagnosis can only diagnose and locate fault at the physical level of equipment or communication links because of not considering the information association in the process of protection or control fault in smart substation,this paper combs the information sets of reflect protection or control functions,and establishes the Petri model of protection and control functions including event message sequence and physical equipment status respectively,as well as the Petri model subnet which can infer the sub-functions’state of equipment.Then carry out fault diagnosis and fault location reasoning of protection and operation control based on Petri nets model by getting the information status of the fault through the network message.The results of diagnosis and location can reflect the defects of the logical function of the equipment.The example proves that this method has a good effect on fault diagnosis and location in the process of protection and operation control of smart substation.
作者
陈军
刘鑫
王利平
郑中
叶翔
任杰
CHEN Jun;LIU Xin;WANG Liping;ZHENG Zhong;YE Xiang;REN Jie(State Grid Sichuan Electric Power Company,Chengdu 610041,China;Nanjing Nari Electric Relay Co.Ltd.,Nanjing 211102,China;The Power System Wide-area Measurement and Control Sichuan Provincial Key Laboratory,University of Electronic Science and Technology of China,Chengdu 611731,China)
出处
《中国测试》
CAS
北大核心
2019年第10期128-134,共7页
China Measurement & Test
基金
四川省科技计划支撑项目(521999130JX7)
四川省青年科技基金(2017TD0009)
