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Diophantine equation based model of data transmission errors caused by interference generated by DC-DC converters with deterministic modulation

Bojarski J., Smolenski R., Lezynski P., Sadowski Z.

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2016

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Vol. 64, nr 3

575--580

EN

The assurance of the electromagnetic compatibility of sensitive smart metering systems and power electronic converters, which introduce high-level electromagnetic interference is important factor conditioning reliable operation of up to date power systems. Presented experimental results have shown that currently binding, frequency domain tests are ineffective for the evaluation of data transmission error hazards. The proposed in this paper mathematical, time-domain model, based on Diophantine equation, enables evaluation of data transmission errors caused by interference introduced by DC-DC power electronic interfaces with deterministic modulation. In the paper there have been presented possible application areas for the proposed model.

2

Aggregated conducted interferences generated by group of frequency converter-fed drives

Smolenski R., Kempski A., Benysek G.

Przegląd Elektrotechniczny

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2009

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R. 85, nr 10

244-247

EN

This paper addresses the problems linked with aggregated electromagnetic interferences (EMI) generated by induction motor drives fed by two-quadrant frequency converters. The main goal is to establish the influence of the drive system consisting three induction motors fed by frequency converters onto local electric grid.

PL

W pracy przedstawione zostały zagadnienia związane z sumowaniem się zaburzeń przewodzonych generowanych przez trzy niemal identyczne dwukwadrantowe asynchroniczne napędy przekształtnikowe przyłączone do wspólnego punku zasilania. Na podstawie pomiarów w dziedzinie czasu i częstotliwości przedstawiono zjawiska towarzyszące sumowaniu sie tych zaburzeń.

3

Method of Selection of dv/dt for EMI Current Ringing Attenuation

Kempski A., Smolenski R.

Electrical Power Quality and Utilisation. Journal

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2008

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Vol. 14, iss. 2

19--24

EN

In this paper the method of the selection of dv/dt for EMI current ringing attenuation has been presented. The mechanism for the attenuation is first identified using the theoretical approach. It is shown that the attenuation occurs for rise time of the voltage equal to the inverse of the frequency of current ringing. The concept has been experimentally verified in DC chopper and frequency converter arrangements. The proposed method of ringing attenuation can be applied in power converters with flexible gate control and can be also utilized in a wide area of electronic circuits with a trapezoidal excitation for a signal integrity improvement.