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With the increasing levels of substation automation IEC61850 standard ( substation communication network and system series standard ) promulgation and implementation of Ethernet in substation automation system is imperative . The emergence of embedded Ethernet technology for substation automation network communication provides a new way . Departure from the embedded Ethernet in substation automation system , based on analysis of substation automation network communication characteristics , dynamic simulation , real-time performance of the network is designed based on embedded Ethernet communication substation automation communication platform to solve the the Ethernet transmission substation automation equipment problem . The subject first explored the communication protocol for substation automation network communication , network -level, data interfaces and networking solutions , systematic analysis of substations in the distribution of the data stream , according to the statistical characteristics of mathematical models of various types of data streams . Secondly, taking into account the the substation network communication real-time requirements , in-depth analysis of the the substation network communication delay constitute dynamic simulation modeling technology , on this basis , a detailed analysis of the real-time performance of the substation embedded Ethernet , combined the distribution substation communication network data stream characteristics and the information reaches the law , to establish a simulation model of the substation communication network , specific research process layer and substation layer embedded Ethernet network delay . Finally, we designed of a substation embedded Ethernet communication platform , elaborate communication platform hardware and software design , hardware design based on TMS320F2812 DSP, software design based on an embedded operating system μC/OS- II , elaborated the Ethernet interface implementation , the portable operating system based on embedded TCP / IP protocol stack and rational design, to verify the feasibility of the communication platform and tested by experiment .
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