Exploration and Analysis of Traceability and Calibration Methods for DC Shunt Verification Devices

ZHU Caiyi; LUO Ying; LI Hua; CHEN Chuan

doi:10.12338/j.issn.2096-9015.2023.0258

Volume 67 Issue 9

Sep. 2023

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ZHU Caiyi, LUO Ying, LI Hua, CHEN Chuan. Exploration and Analysis of Traceability and Calibration Methods for DC Shunt Verification Devices[J]. Metrology Science and Technology, 2023, 67(9): 61-68, 39. doi: 10.12338/j.issn.2096-9015.2023.0258

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ZHU Caiyi, LUO Ying, LI Hua, CHEN Chuan. Exploration and Analysis of Traceability and Calibration Methods for DC Shunt Verification Devices[J]. Metrology Science and Technology, 2023, 67(9): 61-68, 39. doi: 10.12338/j.issn.2096-9015.2023.0258

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Exploration and Analysis of Traceability and Calibration Methods for DC Shunt Verification Devices

doi: 10.12338/j.issn.2096-9015.2023.0258

ZHU Caiyi^1
,,
LUO Ying¹,
LI Hua¹,
CHEN Chuan^{2
,
,}

1.
Hunan Institute of Metrology and Test, Changsha 410014, China
2.
National Institute of Metrology, Beijing 100029, China

Received Date: 2023-11-03
Accepted Date: 2023-11-22
Rev Recd Date: 2023-11-28

Available Online: 2023-12-06

Publish Date: 2023-09-18

Abstract

Abstract

To ensure the effective traceability of DC shunt verification devices, thus guaranteeing the accuracy and reliability of both the device and the DC shunts it measures, this paper delineates the wide-range, high-current traceability relationships for DC energy. It introduces the working principles of each measuring instrument in the traceability chain, with a focus on the traceability standards and calibration methods of the DC shunt verification device. The paper also discusses and analyzes key technologies for precise measurement of large DC currents and small-signal DC voltages, such as precision I/V conversion and multiple-slope integral analog-to-digital conversion techniques. An example of uncertainty evaluation for measurement results is provided. The proposed methods offer technical support for the development of clean energy infrastructure and ensure fair energy trading. This field warrants further in-depth study based on the discussions and analyses presented.
- metrology,
- DC shunt,
- traceability,
- DC electrical energy metrology,
- standard instruments,
- small signal voltage,
- multiple slope integration

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References(31)

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