Research on Security and Protection of Grid System Information Communication Network

Abstract

Smart Grid is the product of deep integration of power system and information network. It applies advanced control technology, communications, information and networking to power systems. In the power generation, transmission, substation, power distribution, power consumption and dispatching, the integrated two-way flow of power flow and information flow is realized in the power grid. The smart grid information exchange is frequent, the coverage is large, the related equipment is complex, and any node may have information security problems, which causes the smart grid to malfunction and cause different degrees of harm to the society. Therefore, information security issues have become an important factor affecting the development of smart grids. This paper discusses the development overview, architecture and key technologies of smart grids and analysis the security risks of current smart grid information systems. Aiming at the information security problem in smart grid information communication system, an access control scheme is proposed to facilitate key management and maintenance, which improves the security of the communication system in the smart grid, enabling the smart grid system to operate more safely and reduce the harm caused by grid damage to society.