摘要
针对国内变电站自动化系统设备互操作性不足、实时性和可靠性不高等问题,论述了基于DSP/BIOS软件平台的嵌入式以太网在变电站通信系统中的应用。对基于IEC61850标准的变电站自动化系统功能分层进行了分析,给出了间隔层保护监控设备通信插件的硬件方案。在此基础上,阐述了通信插件软件功能模块的线程选择,分析了变电站通信协议模型,并在DSP/BIOS下实现精简的TCP/IP协议,最后对DSP/BIOS内核开销作了估算。结果表明:DSP/BIOS内核本身占用资源少,能够满足变电站通信系统的数据传输量大、实时性高等要求。
In view of the issues of inadequate interoperability, low real-time and reliability in substation equipments, applications of embedded Ethernet based on DSP/BIOS software platform in substation communication system were discussed. By analyzing the layered functions of substation automation system based on IEC61850 standards, a hardware plan of the communication plug-in in the substation bay level protection and monitoring device was given. Based on this, how to choose the threads of the communication plug-in software module was elaborated, then the substation communication protocol model was analyzed, and the simplified TCP/IP protocol was realized under DSP/BIOS. Finally, DSP/BIOS kernel＇ s spending was estimated. The results show that DSP/BIOS kernel itself occupies less resources, and will be able to meet the demand of large amount of data transmission and high real-time in the substation communication system.
出处
《仪表技术与传感器》
CSCD
北大核心
2009年第4期38-40,共3页
Instrument Technique and Sensor
