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Testing of Electrical Energy Meters Subject to Realistic Distorted Voltages and Currents

Author

Listed:
  • Lorenzo Bartolomei

    (Department of Electric, Electronic and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Diego Cavaliere

    (Department of Electric, Electronic and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Alessandro Mingotti

    (Department of Electric, Electronic and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Lorenzo Peretto

    (Department of Electric, Electronic and Information Engineering, University of Bologna, 40136 Bologna, Italy)

  • Roberto Tinarelli

    (Department of Electric, Electronic and Information Engineering, University of Bologna, 40136 Bologna, Italy)

Abstract

This paper presents a study on revenue active electrical energy meters. The huge installation along the distribution network of these devices made them a key element for energy billing, but also for monitoring the grid status. Hence, it is evident that the relevance of guaranteeing a trusty metering performance, and consequently a proper standardization, is needed. The operation of the meters is regulated by standards harmonized with the European Directive 2014/32/EU (known as MID). Still, and not infrequently, compliance to some legacy standards is declared on the device specifications. Thus, a brief comparison between the latest standards is presented. In particular, the focus was set on evaluating the potential impact of the harmonic disturbances on the energy meter accuracy, since they are omnipresent in the modern power networks. The evaluation has been carried out on three off-the-shelf class B meters by means of a new test procedure that considers realistic and quasi-realistic harmonic disturbances. Such tests showed that realistic harmonic disturbances affect significantly only some energy meters. Therefore, the standards should not neglect this kind of scenario.

Suggested Citation

  • Lorenzo Bartolomei & Diego Cavaliere & Alessandro Mingotti & Lorenzo Peretto & Roberto Tinarelli, 2020. "Testing of Electrical Energy Meters Subject to Realistic Distorted Voltages and Currents," Energies, MDPI, vol. 13(8), pages 1-13, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:8:p:2023-:d:347416
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    References listed on IDEAS

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    1. Al-Wakeel, Ali & Wu, Jianzhong & Jenkins, Nick, 2016. "State estimation of medium voltage distribution networks using smart meter measurements," Applied Energy, Elsevier, vol. 184(C), pages 207-218.
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    Cited by:

    1. Yaroslav Shklyarskiy & Zbigniew Hanzelka & Aleksandr Skamyin, 2020. "Experimental Study of Harmonic Influence on Electrical Energy Metering," Energies, MDPI, vol. 13(21), pages 1-13, October.
    2. Renan Quijano Cetina & Yljon Seferi & Steven M. Blair & Paul S. Wright, 2021. "Energy Metering Integrated Circuit Behavior beyond Standards Requirements," Energies, MDPI, vol. 14(2), pages 1-19, January.

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