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Uninterrupted power supply with intermediate HF circuit

Unterbrechungsfreie Stromversorgungssysteme mit HF-Zwischenkreis

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Contents

This work presents an uninterrupted monophase power supply with IGBT transistors and HF intermediate circuit. Two three-phase UPS circuits with intermediate HF circuit are also presented, based on the suggested control method. All the suggested versions are characterized by small dimensions and a high fundamental content (0,995) of the alternating output voltages.

Übersicht

In der vorliegenden Arbeit wird ein unterbrechungsfreies Stromversorgungssystem mit IGBT Transistoren und Hochfrequenz-Zwischenkreis vorgestellt. Gleichfalls werden zwei neue Drehstrom-UPS-Schaltkreise mit HF-Zwischenkreis, die nach der vorgeschlagenen Steuerungsmethode arbeiten, vorgestellt. Alle beschriebenen Varianten zeichnen sich durch verkleinerte Abmessungen und einen erhöhten Grundschwingungsgehalt der Ausgangswechselspannungen aus.

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Abbreviations

t :

instantaneous time

u :

instantaneous voltage

u 1 :

inverter output voltage

f s :

switching frequency

a 1−a 5 :

average voltages

n :

harmonic order

References

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Authors and Affiliations

  1. Faculty of Electronics and Telecommunications, Polytechnic Institute of Jassy, Bulevardul Copou No. 11, RO-6600, Jassy, Romania

    D. Alexa & M. Florea

Authors
  1. D. Alexa
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  2. M. Florea
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Alexa, D., Florea, M. Uninterrupted power supply with intermediate HF circuit. Archiv f. Elektrotechnik 75, 341–344 (1992). https://doi.org/10.1007/BF01576103

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  • DOI: https://doi.org/10.1007/BF01576103

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