Research on domestic technology of substation automation equipment

To proactively address the disruptions in chip supply, the State Grid Corporation of China (SGCC) has undertaken comprehensive measures in line with the requirements set forth in the Regulations on the Protection of Critical Information Infrastructure by the State Council. Starting from November 2019, the National Power Dispatch and Communication Center initiated efforts to localize and replace substation automation systems. This involved conducting research on domestic chip options, achieving breakthroughs in key alternative technologies, developing equipment with entirely domestic components, conducting specialized testing, integrating with the power grid, and carrying out large-scale deployment. These endeavours have significantly enhanced the autonomy and controllability of the substation automation system, thereby comprehensively improving the level of prevention and control of grid security risks.