电动汽车直流充电桩计量误差分析方法研究

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【Abstract】With the popularization of electric vehicles，the metering accuracy of DC charging piles has become the key toensuring user rights and the fairness of services.This paper is basedon JJG1149—2022 "Electric Vehicle OffBoard Charger （Trial）"，focusingonthemetering erorof DC charging pile，analyzing theinfluenceof multiplefactors such as ripple，temperatureand hardware characteristicson metering accuracy，and proposes an error analysis methodbasedon signal decompositionandneuralnetwork，andverifies theefectivenessof themethodthrough experiments.Theresearch results provide technical support for theoptimization of metering performance and the implementationof procedures for DC charging piles.

【Key Words】DC charging pile；metering error;ripple analysis;neural network

0 引言

直流充电桩作为新能源汽车充电基础设施，与交流充电桩相比，具有充电速度快、充电效率高等突出优势。（剩余4222字）