OPNET在微网通信系统仿真中的应用  

Application of OPNET in microgrid communication system simulation

作　　者：韦幸幸 张有兵[1] 谢路耀[1] 杨晓东[1] 

机构地区：[1]浙江工业大学信息工程学院,浙江杭州310023

出　　处：《机电工程》2014年第3期404-408,共5页Journal of Mechanical & Electrical Engineering

基　　金：浙江省自然科学基金重点资助项目(Z1110893);浙江省自然科学基金资助项目(LY12E07005)

摘　　要：针对微网通信系统存在的实时性问题,将变电站自动化系统的全球通信标准IEC61850应用到微网通信系统中。建立了基于IEC61850标准的3层微网通信结构,并对微网中的通信业务进行了分析和建模,提出了利用网络仿真软件OPNET对微网通信系统的实时性进行仿真的方法。在OPNET网络仿真平台上,以系统的整体通信延时、保护和控制业务延时和不同节点的延时为研究对象,对采用两种不同链路速率(10 Mbit/s、100 Mbit/s)的微网通信延时进行了试验。研究结果表明,10 Mbit/s的链路带宽基本能满足微网通信系统的整体实时性能要求,但在网络业务流增多时某些业务易出现延时发散,而采用100 Mbit/s的通信链路能较好地全面满足微网通信系统的实时性要求,为微网通信系统带宽的选择以及其他业务的建模提供了一定的参考。Aiming at the problems of real-time performance in a microgrid communication system,IEC61850,the global communication standard for substation automation systems was applied for microgrid communication system.A three-layer microgrid communication structure was built based on IEC61850,while the communication traffic in microgrid was analyzed and modeled,a method was presented to simulate the microgrid real-time performance using network simulation software OPNET.Taken bandwidth of 10 Mbit/s and 100 Mbit/s as communication link,the global delay of microgrid communication network,the protection and control traffic delay,the delay of different nodes were tested on OPNET.The results indicate that the 10 Mbit/s bandwidth can basically meet the global real-time performance requirements,however,the delays will spread when the traffic flow increases.The 100 Mbit/s communication link is preferred,which can well meet the real-time requirements of the microgrid in all-round way.Some references were provided to choose bandwidth and model other traffics in building microgrid communication system later.

关 键 词：OPNET 微网 业务流 延时 

分 类 号：TM63[电气工程—电力系统及自动化] TP933[自动化与计算机技术]