基于MK64平台的配网终端多回路录波方案  

Multi-loop recording scheme for distribution network terminals based on MK64 platform

作　　者：朱重阳 ZHU Chongyang(Guodian Nanjing Automation Company Limited, Nanjing 210032, China)

机构地区：[1]南京国电南自自动化有限公司,南京210032

出　　处：《华电技术》2019年第5期65-68,共4页HUADIAN TECHNOLOGY

摘　　要：目前在配网中应用的硬件平台大多主频低、内存小,主要用于馈线终端装置(FTU)单回路装置上,而对于数据传输单元(DTU)这种多回路的应用场景,只有基本功能可被实现。实现多回路采样及录波存储这类需要大数据量文件存储、高实时性的应用功能,对主频和内存有特别高的要求。针对这一现状,设计了一种基于飞思卡尔MK64平台、外扩SDRAM,可于DTU多回路录波存储的方案,支持4种故障序列情况下快速触发录波并正确保存文件。通过实际装置验证采样数据及波形文件证明该方案的可行性。At present,most of the hardware platforms in distribution network are of low main frequency and small memory,and are mainly used on single loop device in feeder terminal units( FTU). As for the multi-loop scenario in data transmission unit( DTU),only the fundamental functions can be implemented. Realizing multi-loop sampling and recording requires large data file storage and high real-time application functions,which has high requirements for the main frequency and memory. Aiming at this situation,a method based on Freescale MK64 platform and external SDRAM is designed. It can be used in DTU multi-loop recording storage scheme to support fast trigger recording and correct file storage under 4 fault sequences. Feasibility of the scheme has been verified by sampling data and waveform files of the actual device.

关 键 词：飞思卡尔MK64 DTU终端 实时采样 多回路录波 文件存储 

分 类 号：TM76[电气工程—电力系统及自动化]