Faulty Readings of Static Energy Meters Caused by Conducted Electromagnetic Interference from a Water Pump Bas ten Have, Tom Hartman, Niek Moonen, Cees Keyer, Frank Leferink   2019/07/15

Abstract

Conducted electromagnetic interference (EMI) can affect the energy readings of static energy meters. Lower readings of static energy meters have been reported in many publications, and higher readings were found when lighting equipment in combination with a dimmer was used as a load. In this paper it is shown that by using an off the shelf water pump as a consumer, faulty deviations on the static meters with respect to a reference meter can be found. In the most extreme case, using a standard mains supply, deviations between -61% and +2675% were found. When an ideal power supply with a standardized mains impedance was used deviations between -19% and +483% were shown to exist.

Authors and affiliations

Bas ten Have1, Tom Hartman1, Niek Moonen1, Cees Keyer1,2, Frank Leferink1,3
1. University of Twente, Enschede, The Netherlands
2. University of Applied Sciences, Amsterdam, The Netherlands
3. Thales Nederland B.V., Hengelo, The Netherlands

Key words

Static Meter, Smart Meter, Electronic Meter, Conducted Interference, Electromagnetic Compatibility

References

[1] K. Murakawa, N. Hirasawa, H. Ito, and Y. Ogura, “Electromagnetic interference examples of telecommunications systems in the frequency range from 2kHz to 150kHz,” pp. 581-584, 2014.
[2] F. Leferink, “Conducted interference, challenges and interference cases,” IEEE Electromagnetic Compatibility Magazine, vol 4, no. 1, pp. 78-85, 2015.
[3] J. Kirchhof and G. Klein, “EMV – Grenzwertlüke – wechselrichter stört zähler,” 24. Symposium Photovoltaische Solarenergy, Bad Staffelstein, 2009.
[4] J. Kirchhof, “Grenzwertlücke – Wechselrichter stört elektrizitätzähler,” EMV, Düsseldorf, 2010.
[5] F. Leferink, C. Keyer, and A. Melentjev, “Runaway energy meters due to conducted electromagnetic interference,” IEEE International Symposium on Electromagnetic Compatibility, pp. 172-175, 2016.
[6] F. Leferink, C. Keyer, and A. Melentjev, “Static energy meter errors caused by conducted electromagnetic interference,” IEEE Electromagnetic Compatibility Magazine, vol. 5, no. 4, pp. 49-55, 2016.
[7] C. Keyer and F. Leferink, “Conducted interference on smart meters,” IEEE International Symposium on Electromagnetic Compatibility, pp. 608-611, 2017.
[8] R. Quijano Cetina, A. J. Roscoe, and P.S. Wright, “Challenges for Smart Electricity Meters due to Dynamic Power Quality Conditions of the Grid: A Review,” AMPS 2017 – IEEE International Workshop on Applied Measurements for Power Systems, Proceedings, 2017.
[9] R. Masnicki, “Some Remarks on the Accuracy of Energy Meters,” 2018 IEEE International Conference on Environment and Electrical Engineering and 2018 IEEE Industrial and Commercial Power Systems Europe (EEEIC/I&CPS Europe), 2018.
[10] B. Have, C. Keyer, and F. Leferink, “Monitoring of Power Measured by Static Energy Meters for Observing EMI Issues,” 2018 International Symposium on Electromagnetic Compatibility (EMC Europe), pp. 903-907, 2018.
[11] IEC 61000-4-11:2004(E), Electromagnetic compatibility (EMC) – part 4-11: Testing and measurement techniques- Voltage dips, short interruptions and voltage variations immunity tests.