基于协议代理技术的变电站远程运维网关设计

Design of Substation Remote Operation and Maintenance Gateway Based on Protocol Proxy Technology

随着电网规模的不断扩大,变电站运维工作量不断增加。为提升变电站自动化设备运维的便利性与安全性,基于协议代理技术,提出了一种变电站远程运维安全网关设计方案,通过主子站一体化的框架设计实现调度主站远程运维,提升运维效率,通过国密算法的加密认证提升数据传输的安全性,通过协议代理技术实现通用tcp协议的透明代理,通过身份鉴别与白名单管控技术提升运维安全性。与传统的变电站运维方式相比,减少了对人力的消耗,同时对运维中产生的网络安全风险进行有效管控。最后通过实践验证了理论的可行性和技术的实用性。

With the continuous expansion of power grid scale,the workload of substation operation and maintenance is increasing.In order to improve the convenience and safety of operation and maintenance for substation automation equipment,this paper proposes a design scheme of substation remote operation and maintenance gateway based on protocol proxy technology.Remote operation and maintenance of scheduling master station is realized to improve operation and maintenance efficiency through the integrated framework design of master-and sub-station;the security of data transmission is improved through the encryption authentication of the national secret algorithm;the transparent proxy of general tcp protocol is realized through protocol proxy technology;operation and maintenance security is improved through identity authentication and whitelist management.Compared with the traditional substation operation and maintenance mode,the proposed design reduces the consumption of manpower,and at the same time,effectively controls the network security risks generated in the operation and maintenance.Finally,the feasibility of the theory and the practicability of the technique are verified by practice.