【摘要】 目前大多数变电站的通信基于IEC 61850标准，但其性能落后于现代通信技术，阻碍了变电站向智能轻量级通信的全面过渡。为此，提出一种通信映射方法，结合简明二进制对象表示（CBOR）格式，将IEC 61850标准映射到受限应用程序协议（CoAP）。首先，给出常用IEC 61850服务的CoAP映射URI和请求方法；其次，对CoAP订阅模式进行扩展，以解决IEC 61850到CoAP映射需求；最后，搭建通信映射模型验证所提出方法的有效性。与现有的WS-SOAP、HTTP映射方案相比，CoAP+CBOR只需要44%、18%的信息大小以及71%、85%的通信时间，可以缓解电网中设备和网络资源受限的问题。更多还原

【Abstract】 At present,the communication of most substations is based on the IEC 61850 standard,but its performance is lagging behind modern communication technology,which hinders the comprehensive transition of the substation to intelligent lightweight communications. To this end,a communication mapping method is proposed,which combines the confident binary object representation(CBOR)format and maps the IEC 61850 standard to the constrained application protocol(CoAP). Firstly,a COAP mapping URI and request method of commonly used IEC 61850 services are given.Secondly,the COAP subscription mode is expanded to resolve the IEC 61850 to COAP mapping requirements. Finally,the communication mapping model is set to verify the effectiveness of the proposed method. Compared to existing WS-SOAP and HTTP mapping schemes,COAP+CBOR requires only 44% and 18% of information size,71% and 85%communication time,which alleviates the problem of limited equipment and network resources in the power grid.更多还原