СТРАТЕГІЯ АКТИВНОЇ ФІЛЬТРАЦІЇ ЗАДЛЯ МІНІМІЗАЦІЇ ПОТУЖНОСТІ ВТРАТ ТРИФАЗНОЇ ЧОТИРИПРОВІДНОЇ СИСТЕМИ З ДВОМА НАВАНТАЖЕННЯМИ
The problem of energy-efficient active current filtering of multiphase power supply system with spatially distributed loads has been formulated. The optimization criterion is the minimization of the total power losses in the transmission line under conditions of zero active power of each filter’s in...
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| Datum: | 2026 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
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Інститут електродинаміки НАН України, Київ
2026
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| Online Zugang: | https://techned.org.ua/index.php/techned/article/view/1845 |
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| Назва журналу: | Technical Electrodynamics |
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Technical Electrodynamics| Zusammenfassung: | The problem of energy-efficient active current filtering of multiphase power supply system with spatially distributed loads has been formulated. The optimization criterion is the minimization of the total power losses in the transmission line under conditions of zero active power of each filter’s inverter connected to the corresponding load. A new strategy for energy-efficient current filtering of a three-phase four-wire power supply system with two loads supplied from a radial transmission line with two consecutive sections is proposed, which calculates the active currents of network sections in real time by minimizing the Lagrange function composed of the total power losses in the transmission line and the conditions ensuring that the active powers of each load are supplied by active currents. It is established for the first time that the value of the minimum total power losses in the transmission line of a three-phase four-wire power supply system with two loads is the weighted sum of these load active powers with weighting coefficients in the form of calculated Lagrange multipliers. The proposed strategy for current filtering of two loads was implemented in a computer model which confirmed the predicted energy-saving performance for both linear and nonlinear loads. The settling time of the active filter parameters during dynamic changes in one of the loads is equal to one period of the mains voltage. References 15, figures 4. |
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