Abstract
The increased use of non-linear equipment results in conducted electromagnetic interference problems. As an example, static energy meters, used to measure the energy consumption in households, show misreadings due to pulsed currents from a speed controlled water pump or dimmed lighting equipment. To determine the existence of similar equipment in low-voltage networks, this letter surveys current waveforms drawn by equipment in the low-voltage network. These waveforms are analyzed and compared to critical waveforms from previous research that caused static energy meter interference. In this way the extent of critical situations in a real-world environment is determined. The equipment survey is performed using a multi-channel timedomain measuring method able to capture the voltage and currents synchronously. Then using a time-domain parametric model a statistical overview of parameters such as the charge, crest factor, peak value, pulse duration, and rising slope is given. The survey shows the existence of a large variety of non-linear signals, and 43% contained critical parameters related to static energy meter interference.
Original language | English |
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Number of pages | 4 |
Journal | IEEE Letters on Electromagnetic Compatibility Practice and Applications |
Volume | 3 |
Issue number | 4 |
Early online date | 11 Oct 2021 |
DOIs | |
Publication status | Published - 11 Oct 2021 |
Keywords
- Electromagnetic interference
- Equipment survey
- Non-linear
- Static energy meter (SM)
- Time-domain