IEC 61850快速报文传输服务在VxWorks中的实现

Realization of Fast Message Transmission Services Based on IEC 61850 in VxWorks

采样值和通用面向对象的变电站事件(GOOSE)报文是IEC 61850标准中实时性要求最高的2种通信服务(以下简称为快速报文传输服务)。不同于VxWorks默认采用的传输控制协议(TCP)/互联网协议(IP)协议栈,快速报文传输服务要求直接由应用/表示层映射到数据链路层。针对这一问题,在分析快速报文传输服务的抽象通信服务接口(ACSI)和特定通信服务映射(SCSM)的基础上,在VxWorks中设计了实现快速报文传输服务的快速通信接口、应用任务与函数,继而提出了快速报文传输服务的实时处理方法,最后组建了测试环境对GOOSE报文的实现及其实时性进行了测试。

Fast message transmission services （FMTS）, including sampled value message and generic object oriented substation event （GOOSE） message, are two communication services with the highest requirement on the real-time performance （hereinafter referred to as fast message transmission service for short） in the standard IEC 61850, Unlike the TCP/IP in VxWorks, FMTS requires that it be directly mapped from the application/presentation layer onto the data link layer. In order to resolve this problem, the fast communication interface, tasks and functions are designed for FMTS in VxWorks based on an analysis of the abstract communication service interface （ACSI） and specific communication service mapping （SCSM） of FMTS with the real-time processing methods of FMTS proposed, Finally, a test environment and the test results concerning the realization and real-time performance of GOOSE message in VxWorks are provided.