Research on Remote Meterage and Monitoring Method for AC Charging Pile of Electric Vehicle

According to the traditional full-scale on-site periodic verification mode for AC charging piles, the verification amount of AC charging piles is large, and the required manpower, time, and equipment investment costs are high, and on-site calibration is easily affected by environmental and weather factors, and the traditional on-site calibration is more time-consuming and laborious. In view of the above problems, a remote meterage and monitoring method of AC charging pile meterage data based on total-branch meter method is proposed in this paper. The basic energy meterage error of AC charging pile is obtained by the remote data processing, statistics, algorithm calculation and analysis. Compared with the on-site meterage results of the AC charging pile standard equipment, the results show that through the tests of multiple charging piles and multiple time periods, the electric energy error of the charging pile calculated from the remote meterage and monitoring data of the total-branch meter method is basically consistent with the size and trend of the electric energy error data measured by the standard device of the charging pile. This method provides data support for the feasibility of the application of big data remote meterage in the meterage and calibration of charging pile, provides direction for innovating the meterage and monitoring forms and methods of charging facilities.