基于安全连接网络的远程运维系统方案设计

针对目前智能变电站设备运维受现场运维的条件限制,导致对突发故障无法进行实时处理。为此,文中提出构建基于安全连接网络的远程运维系统。该系统通过构建安全通讯链路,使第三方应用可通过该安全通讯链路进行通讯,控制链路和数据链路通讯报文都采用SM2进行加解密。其中,利用制造报文规范(MMS)协议实现智能变电站智能电子设备(IED)与变电站端远程运维集控装置之间的通讯;采用SNMP协议(简单管理协议)来实现站内交换机与变电站端远程运维集控装置之间的通讯,二者协同实现智能变电站的远程运维通讯。该系统将为提高电网运维时效性及降低电网运费的成本提供坚实的基础。

Design of Remote Operation and Maintenance System Based on Secure Connection Network

In view of the current conditions of on-site operation and maintenance of intelligent substation equipment operation and maintenance, it is impossible to deal with sudden failures in real time. To this end, the paper proposes to build a remote operation and maintenance system based on a secure connection network. The system establishes a secure communication link, so that third-party applications can communicate through the secure communication link, and control link and data link communication messages are encrypted and decrypted by SM2. Among them, the MMS protocol is used to realize the communication between the intelligent substation IED and the substation terminal remote operation and maintenance control device;the SNMP protocol (simple management protocol) is used to realize the communication between the station switch and the substation terminal remote operation and maintenance control device. The two cooperate to realize the remote operation and maintenance communication of the intelligent substation. The system will provide a solid foundation for improving the timeliness of power grid operation and greatly reducing the cost of grid freight.