变电站过程层网络特定通信服务映射(SCSM)及其对实时性的影响分析  

Real-time analysis of specific communication service mapping(SCSM) in process-level network of substation

作　　者：陈志光[1] 张延旭[2] 曾耿晖[1] 王海柱[2] 邱建[1] 蔡泽祥[2] 

机构地区：[1]广东省电力调度中心,广东广州510600 [2]华南理工大学电力学院,广东广州510640

出　　处：《电力系统保护与控制》2012年第21期96-101,124,共7页Power System Protection and Control

基　　金：广东省科技计划项目(2010B010900028)

摘　　要：为定量研究变电站过程层网络是否能满足继电保护等应用的高实时性要求,分析了IEC61850所定义的过程层网络特定通信服务映射(SCSM)的概念及具体映射方式。基于OPNET仿真软件对过程层网络SCSM进行了建模,模型包含了SCSM中物理层和数据链路层的全部协议以及部分应用层协议,能够完整描述关键报文的通信行为,为定量分析变电站过程层网络实时性提供了一个有效的工具。针对影响智能变电站SV和GOOSE这两种关键报文实时性的主要因素,结合一中型变电站模型,应用含过程层SCSM模型的OPNET软件进行了实时性仿真,论证了采用SCSM能够满足过程层网络关键报文的实时性要求。In order to conduct a quantitative study of whether the substation process-level network can meet the high real-time requirements of the applications such as relay protection, this paper firstly analyses the concept of process-level network SCSM in IEC 618 5 0 and describes the detail of specific mapping. Then SCSM model is established based on simulation software OPNET. This model includes the entire protocols of the SCSM data link layer and physical layer as well as part of the application layer protocols, which can describe the communication behavior of key messages completely and provide an effective tool to analyze the process-level network quantitatively. Finally, combined with a medium-sized substation model, this paper conducts a real-time simulation with the SCSM model aiming at the factors that affect the real-time of SV and GOOSE messages and demonstrates the using of SCSM can meet the real-time requirements of key messages in process level network.

关 键 词：过程层网络 OPNET 特定通信服务映射 继电保护 实时性 

分 类 号：TM76[电气工程—电力系统及自动化]