DOI: https://doi.org/10.15407/techned2016.05.014

FREQUENCY CONVERTER WITH THE REDUCED THD OF THE OUTPUT VOLTAGE

Authors
Pavlov G.V.*, Vinnichenko I.L., Obrubov A.V.**
Admiral Makarov National University of Shipbuilding,
Geroev Stalingrada, 9, Nikolaev, 54001, Ukraine,
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* ORCID ID : http://orcid.org/0000-0002-4937-1828
** ORCID ID : http://orcid.org/0000-0001-9667-1703

Abstract

The method for a non-linear control of the resonant inverter’s output voltage, which allows to create a low-frequency sinusoidal output voltage using the high-frequency modulation of the resonant pulses, was developed. It assumes the preliminary formation of the switching sequences for the converter’s switches. It was proposed to use the circuit with the switched capacities to change the pulse characteristics while reducing the absolute value of the inverter’s output voltage. The algorithm for the calculation of the switching sequences was proposed. The simulation of the inverter took place. It confirmed the reduction of the output voltage distortions. References 7, figures 3.

Key words: frequency converter, resonant inverter, non-linear control.

Received:    24.01.2016
Accepted:    07.04.2016
Published:  13.09.2016

References

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4. Pavlov G.V., Obrubov A.V., Vinnichenko I.L. Electromagnetic processes and parameters of storage elements in the resonant inverter with nonlinear control. Sudostroenie i morskaia infrastruktura.  2015.  No 2(4).  P. 96-107. (Rus)
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