The Data Flow Analysis And Scheme Design Of PSCADA In Railway Power Supply

Construction on Electrified railway in China is in fast-growing phase, it provides national citizens convenient transportation condition, and shows more profound value. As an important part of the electrical railway system - the power supply system, its running status and health dominates the result of railway transportation organization, and the Railway Power SCADA System is the key issue that guarantees fine working state of the railway power supply system.For the goal of improving the efficiency of railway transportation, meeting the requirement of both normal-speed railway and high-speed railway, and promoting the performance of reliability and scalability of the Railway Power SCADA System, based on the opportunity of system rebuilding and integrating, this paper makes an deep research on the architecture of national-wide railway power SCADA system, and delves the feature of railway power system, network hierarchy and data communication technology based on network, brings forward a scheme of data access interface, extends railway power SCADA system data transfer protocol based on IEC standards serial, and fulfill a total solution on bureau-wide railway power SCADA system, which will guide the subsequent implement process.