Research on an Integrated Dual Mode DC Energy Metering Device and Metering Method

Meng, Jun; Song, Lei; Bai, Jingfen; Cen, Wei; Duan, Yongxian; Lu, Chunguang

doi:10.1109/icopesa54515.2022.9754393

Cited by 2 publications

(3 citation statements)

References 3 publications

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“…Some methodologies of the DC electric energy metering have been proposed previous, while compared with the methods presented in [21][22][23][24], the advantages of the DC energy metering method proposed in this paper are as follows:…”

Section: Comparison With the State-of-the-art Methodsmentioning

confidence: 99%

“…Considering the on-site chargers' impact, the designed equipment in this paper inherits good environmental adaptability. However, the stateof-the-art methods often ignore the aforementioned uncertainty influence [21][22][23][24].…”

Section: Comparison With the State-of-the-art Methodsmentioning

confidence: 99%

“…When the charger is verified on-site, it is necessary to achieve broadband current measurement and comparison [18][19][20]. Paper [21] studied the integrated dual-mode DC power metering device for DC distribution networks. However, the effective voltage measurement range is 375 V, which is not suitable used in the scenarios of the DC voltage higher than 375 V. In [22], the DC electric energy measurement method for the domestic electric vehicle charging facilities is explored, in which the allowed measuring range of the current is lower than 250 A.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Traceability Technology of DC Electric Energy Metering for On-Site Inspection of Chargers

Li¹,

Xiong²,

Wang³

2023

Energy Engineering

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The on-site inspection of high-power DC chargers results in new DC high-current measurement and DC energy traceability system requirements. This paper studies the traceability technology of electric energy value for automotive high-power DC chargers, including: (1) the traceability method of the built-in DC energy meter and shunt of the charger; (2) precision DC high current and small precision DC voltage output and measurement technology. This paper designs a 0.1 mA∼600 A DC high current measurement system and proposes a 0.005 level DC power measurement traceability system. The uncertainty evaluation experiment of the DC power measurement calibration system and the high-power DC charger's on-site calibration experiment results verify the method's effectiveness and feasibility in this paper. The experimental results show that the combined standard uncertainty of the DC power metering verification system can be 0.0451%.

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Section: Comparison With the State-of-the-art Methodsmentioning

confidence: 99%