Research on the Energy Measurement System and Traceability of Charging Stations Based on High Real-Time Network Management

This paper proposes a high-precision and real-time network management electric vehicle charging station energy metering and billing system, aiming to solve the real-time measurement and transaction settlement problems of electric vehicle single charging energy. The system includes a layered distributed network system, a three-level billing wireless transmission system, a modular energy billing management system, and a charging station circuit design. At the same time, experimental testing and analysis were conducted on the impact of environmental temperature and humidity, electrical fast transient pulse group immunity, radio frequency electromagnetic field immunity, and radio frequency field induced conduction immunity on the system's electrical energy metering data. The results indicate that the impact of the energy metering system for charging stations based on network management on the accuracy of measurement data does not exceed ± 0.2%.