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A Three-Phase Power Grid Regulator with Different Structures of Output Filters

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Abstract

This paper is devoted to the study of a regulator based on a power electronic dc/ac converter that can carry out different functions on the improvement of electric power quality in the three-phase low-voltage grid. The algorithm of the control system is based on the Park–Gorev transform and the use of pulse-width modulation of converter voltage has been suggested. The effect of structure of an output passive converter filter on the operation of the grid regulator has been analyzed. A technique to calculate L- and LCL-filters of a regulator have been considered, as well as mathematical models of a regulator for analysis of its dynamic characteristics and determining the parameters of a control unit in the current feedback circuit, has been presented. Computer simulations that demonstrate the effect of the characteristics of an output filter and parameters of a control system on the dynamic characteristics of a device and level of current modulation distortion of the regulator have been carried out.

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Funding

This study was supported by the Russian Foundation for Basic Research, project no. 18-08-01345.

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Authors and Affiliations

  1. Moscow Power Engineering Institute, Moscow, Russia

    K. V. Kryukov, M. G. Kiselev, M. G. Lepanov, Yu. B. Tserkovskii & E. S. Erokhina

Authors
  1. K. V. Kryukov
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  2. M. G. Kiselev
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  3. M. G. Lepanov
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  4. Yu. B. Tserkovskii
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  5. E. S. Erokhina
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Corresponding author

Correspondence to K. V. Kryukov.

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Translated by M. Astrov

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Kryukov, K.V., Kiselev, M.G., Lepanov, M.G. et al. A Three-Phase Power Grid Regulator with Different Structures of Output Filters. Russ. Electr. Engin. 91, 255–261 (2020). https://doi.org/10.3103/S1068371220040045

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  • DOI: https://doi.org/10.3103/S1068371220040045

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