Research and Implementation of Remote Operation and Maintenance Technology for Power Grid Based on TCP Protocol Proxy

With the development of the economy, the scale of the power grid has begun to expand continuously. In order to cope with the increasing workload of substation operation and maintenance, this paper proposes a design scheme of remote operation security gateway for substation and give research on protocol proxy technology. Through the design of master-substation integrated O&M system, it realizes remote O&M from master which can save manpower. Through TCP protocol proxy technology, it implements transparent proxy of general protocol. Through identity authentication, encryption authentication and other control technologies, it improves O&M security. At the end of this paper, through practical verification, the feasibility of the technology was demonstrated through performance and functional testing.