A New Calibration Method for Digital Power Metering System

Abstract:

Currently in the smart substation, the traceability method of the digital metering system is a sub-component traceability method, which means that the electronic transformer and the digital power meter are calibrated separately. However, the calibrations of the electronic transformer and the digital power meter have been the problem of measuring department, its traceability having been unable to be a good solution. In this situation, this paper proposes a new digital metering system calibration method, and the overall error of the digital metering system can be calibrated. An on-site calibration of digital metering system was carried out on the heihe xigangzi substation. The result showed that this digital metering system error was 1.013%, which is consistent with the theoretical value.

• Periodical: Advanced Materials Research (Volumes 614-615)
• Pages: 1784-1789
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.614-615.1784
• Online since: December 2012
• Authors: Hao Liang Hu, Qian Li, He Li, Deng Yun Li
• Keywords: Power Meter, Smart Substation, Traceability, Truncation Error

References

[1] Shixiong Peng. Exchange of electric energy (electric power) test for measuring synthesis error calculation and improved technologies. Beijing: China Electric Power Press, 2002.(in Chinese)

[2] Peng Wang, Guixin Zhang.Elimination of secondary loop voltage drops in voltage transformers[J].Journal of Tsinghua University(Science and Technology),2006,46(4):457-459. (in Chinese)

[3] Peng Wang, Zhiliang Yang, All-digital Power Metering System for the High Voltage Power System[J].Hydropower automation and dam monitoring,2009(6):70-72. (in Chinese)

[4] Branislav Djokic, Eddy So.Calibration System for Electronic Instrument Transformers With Digital Output,IEEE transactions on instrumenstation and measurement,2005,45(2):479-482

DOI: 10.1109/tim.2004.843420

[5] Zheng Qian , Tongjie Li, Xiang Zhang. Design and realization of calibration method of electronic transformer[J].Journal of Beijing University of Aeronautics and Astronautics,2006,32(11):1316-1319. (in Chinese)

[6] Peng-he Zhang, Jun-jia He,Yi-biao Lu, Bao-sheng Wang. Research for Electronic Instrument Transforms Error Calibration Device[J].Electrical Measurement & Instrumentation,2009,46(1). (in Chinese)

[7] Haoliang Hu, qian Li etc.comparison of two electronic transformer error measuring methods, High Voltage Engineering,2011,37(12),:3022-3027. (in Chinese)

[8] Guoying Ling, Shangli Zhou, Weiming Sun etc. Digital substation power metering device traceability. Sale Information Electric Power Automation, 2010 (87) (in Chinese)