智能变电站过程层用交换机的研制

摘要

简述了目前智能变电站的常用网络架构,从电源、存储转发时延、温度范围、吞吐量、强电磁干扰下的零丢包技术、环网自愈时间、组播流量控制和优先级、网络安全控制几方面分析了智能变电站过程层对过程层交换机的需求。提出了一种智能变电站过程层交换机的研制方案,并从组网方式设计、硬件实现和软件实现3个方面详细阐述了该方案,介绍了软件架构和各功能模块的作用。最后对采用该方案研制的交换机的测试结果和运行情况进行了描述和总结。%The classical network architecture of current smart substation is introduced.The requirement on switch used in process level of smart substation is analyzed from several aspects,such as power supply,store-and-forward latency,temperature range,throughput,technology of zero packet loss under strong electromagnetic interference,self-healing time of ring network,multicast filter control and priority,and network security control,etc.A switch developing scheme for process level of smart substation is proposed,and the scheme is illustrated from aspects of design of net structure,hardware implementation and software implementation.The software structure and the role of various functional modules are introduced.Finally,test results and operation situation of the switch developed with this scheme are demonstrated and concluded.