可信WLAN无线接入技术在新型电力系统中的应用分析

Application Analysis of Trusted WLAN Wireless Access Technology in New Power System

电网的高度智能化发展及新型电力系统的建设带来了海量数据接入需求。近年来,随着通信技术的不断更新迭代,电力系统形成了以光传输技术为主,多种有线、无线接入技术为辅的泛在通信网。对于终端接入通信网,采用有线通信方式可以提升通信可靠性及安全性,但光传输网络部署将带来巨大的投资。可信无线局域网(Wireless Local Area Network,WLAN)是电力光纤专网的无线覆盖延伸,采用无线局域网鉴别与保密基础架构(Wireless LAN Authentication and Privacy Infrastructure,WAPI)认证标准,相比美国主导的Wi-Fi安全技术,具有更高的安全性,可以为电力终端设备提供安全、可靠的无线接入,防止非法接入、非法伪造、非法入侵。另一方面,目前的可信WLAN建设方案须基于电力光纤专网进行无线接入覆盖,因此对于该技术与电力业务的适配还需在通信性能指标、安全性、经济性等方面进行深入分析。

The development of highly intelligent power grid and the construction of new power system bring the demand of massive data access.In recent years,with the continuous updating and iteration of communication technology,the power system has formed the ubiquitous communication network which is mainly based on optical transmission technology and supplemented by a variety of wired and wireless access technology.The wired communication mode of terminal access communication network can improve the reliability and security of communication,but optical transmission network deployment will bring huge investment. Trusted wireless local area network(WLAN)is a wireless coverage extension of the power fiber private network,which adopts the wireless lan authentication and privacy infrastructure(WAPI)authentication standard. Compared with the Wi-Fi security technology dominated by the United States,it provides secure and reliable wireless access for power terminals and prevents unauthorized access,forgery,and intrusion. The current trusted WLAN construction scheme needs to be based on the power fiber private network for wireless access coverage.Therefore,the adaptation of this technology to power services was thoroughly analyzed in terms of communication performance indicators,security,and economy.