智能变电站二次设备多维度故障诊断与定位系统方案设计
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摘要
针对智能变电站二次设备及其健康状态参量十分繁杂,导致其故障诊断与定位比较困难。在站端终端上,利用分布式继电保护智能诊断与监视装置多维度获取站控层和过程层网络报文信息,并利用独立的以太网控制器对网络报文进行实时解码分析和存储,检查各类异常状态,并实时给出异常事件告警。通过提取三层两网报文中的有效数据进行同源数据在线校验与趋势监测、保护动作闭环监视、设备运行状态健康评估。结合二次网络拓扑建模技术与故障诊断技术,实现二次设备故障定位功能。系统的整体方案设计采用三层两网架构进行功能实现,该方案可以较好地实现智能变电站二次设备的故障诊断和定位功能。
The secondary equipment of intelligent substation and its health status parameters are very complicated,which makes it difficult to diagnose and locate faults.On the station terminal,the distributed relay protection intelligent diagnosis and monitoring device are used to obtain the station control layer and process layer network message information in multiple dimensions.The independent Ethernet controller is used to perform real-time decoding analysis and storage on the network message,check various abnormal conditions and give an exception event alarm in real time.The online data verification and trend monitoring of the homologous data are used to protect the closed-loop monitoring action,and the health assessment of the running device by extracting the valid data in the three-layer two-network message.Combined with secondary network topology modeling technology and fault diagnosis technology,the secondary equipment fault location function is realized.The overall scheme design of the system is implemented by a three-layer two-network architecture.This scheme can better realize the fault diagnosis and location function of the secondary equipment of the intelligent substation.
The secondary equipment of intelligent substation and its health status parameters are very complicated,which makes it difficult to diagnose and locate faults.On the station terminal,the distributed relay protection intelligent diagnosis and monitoring device are used to obtain the station control layer and process layer network message information in multiple dimensions.The independent Ethernet controller is used to perform real-time decoding analysis and storage on the network message,check various abnormal conditions and give an exception event alarm in real time.The online data verification and trend monitoring of the homologous data are used to protect the closed-loop monitoring action,and the health assessment of the running device by extracting the valid data in the three-layer two-network message.Combined with secondary network topology modeling technology and fault diagnosis technology,the secondary equipment fault location function is realized.The overall scheme design of the system is implemented by a three-layer two-network architecture.This scheme can better realize the fault diagnosis and location function of the secondary equipment of the intelligent substation.
引文
[1] 阴玉婷,杨明玉,郑永康.智能变电站网络化二次系统及其在线监测研究综述[J].电气自动化,2014,36(1):1-4.
[2] 束娜,李艳丽,赵翠玲,等.智能变电站二次在线监测设计及应用实例分析[J].电气应用,2012,2012(10):82-85.
[3] 叶远波,孙月琴,黄太贵,等.智能变电站继电保护二次回路在线监测与故障诊断技术[J].电力系统保护与控制,2016,44(20):148-153.
[4] 赵彤,陈维慎,胡月华.智能变电站继电保护二次回路在线监测与故障诊断技术[J].低碳世界,2017,2017(27):55-56.
[5] 叶远波,纪陵,黄太贵,等.面向状态检修的智能变电站二次设备公共信息模型扩展研究[J].电力系统保护与控制,2018,46(18):49-58.
[6] 郝丽萍,朱平,蔡会会,等.基于多维关联规则的智能变电站二次设备的故障定位研究[J].数字通信世界,2018,2018(8):237-238.
[7] 孙大雁,许祖锋,苏大威,等.基于调度与变电站一体化系统的分布式故障诊断[J].电力系统自动化,2016,40(23):125-130.
[8] 孙运利.智能一体化信息平台的分布式系统故障诊断[J].华电技术,2013,35(11):41-44.
[9] 蔡卫峰.多层次分布式系统智能故障诊断技术[J].现代电力,2002,19(5):58-63.
[10] 蔡卫峰.神经网络技术在分布式系统智能故障诊断中应用[J].化工自动化及仪表,2002,29(5):12-17.
[2] 束娜,李艳丽,赵翠玲,等.智能变电站二次在线监测设计及应用实例分析[J].电气应用,2012,2012(10):82-85.
[3] 叶远波,孙月琴,黄太贵,等.智能变电站继电保护二次回路在线监测与故障诊断技术[J].电力系统保护与控制,2016,44(20):148-153.
[4] 赵彤,陈维慎,胡月华.智能变电站继电保护二次回路在线监测与故障诊断技术[J].低碳世界,2017,2017(27):55-56.
[5] 叶远波,纪陵,黄太贵,等.面向状态检修的智能变电站二次设备公共信息模型扩展研究[J].电力系统保护与控制,2018,46(18):49-58.
[6] 郝丽萍,朱平,蔡会会,等.基于多维关联规则的智能变电站二次设备的故障定位研究[J].数字通信世界,2018,2018(8):237-238.
[7] 孙大雁,许祖锋,苏大威,等.基于调度与变电站一体化系统的分布式故障诊断[J].电力系统自动化,2016,40(23):125-130.
[8] 孙运利.智能一体化信息平台的分布式系统故障诊断[J].华电技术,2013,35(11):41-44.
[9] 蔡卫峰.多层次分布式系统智能故障诊断技术[J].现代电力,2002,19(5):58-63.
[10] 蔡卫峰.神经网络技术在分布式系统智能故障诊断中应用[J].化工自动化及仪表,2002,29(5):12-17.