摘要
继电保护设备中使用了大量的光收发器,用于设备内部和设备间的通信。现阶段,光收发器失效主要分为两种情况,针对其完全失效继电保护设备已有成熟的反措方案,但是其不完全失效可能会导致通信报文单帧刷屏、误报和网络堵塞等严重问题,影响继电保护设备的正常运行,对整个系统产生不利影响。本文针对光收发器不完全失效的问题,基于FPGA芯片设计了光口数据监控机制,解决了光收发器异常导致继电保护设备可靠性降低的问题;针对双监控链路,设计了切换方案,实现了A、B系统监视的无缝衔接,最后依托硬件平台验证了方案的有效性。
A large number of optical transceivers are used in relay protection equipment for communication within and between devices.At present,the failure of optical transceivers can be mainly divided into two situations,and there are mature countermeasures for the complete failure of relay protection equipment.However,its incomplete failure may lead to serious problems such as single frame flashing of communication messages,false alarms,and network congestion,affecting the normal operation of relay protection equipment and having adverse effects on the entire system.This article focuses on the issue of incomplete failure of optical transceivers,and designs an optical port data monitoring mechanism based on FPGA chips to avoid the problem of abnormal optical transceivers leading to reduced reliability of relay protection equipment.A switching scheme is designed for the dual monitoring link,achieving seamless connection between A and B system monitoring.Finally,the effectiveness of the scheme is verified on the hardware platform.
作者
李甲飞
李启晨
张民
程春和
史磊
郝艳军
刘钊
LI Jiafei;LI Qichen;ZHANG Min;CHENG Chunhe;SHI Lei;HAO Yanjun;LIU Zhao(NARI Group Corporation(State Grid Electric Power Research Institute),Nanjing 211106,China;C EPRI Electrical Power Engineering Co.,Ltd.,Beijing 102200;State Grid Corporation of China,Beijing 100032;State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750001)
出处
《集成电路与嵌入式系统》
2024年第2期91-95,共5页
INTEGRATED CIRCUITS AND EMBEDDED SYSTEMS
基金
国家电网总部科技资助项目(5108202218280A 2113 XG)。
