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Dual 3-Phase Bridge Multilevel Inverters for AC Drives with Voltage Sag Ride-through Capability

Author

Listed:
  • Vitor Fernão Pires

    (SustainRD, EST Setubal, Polytechnic Institute of Setúbal, 2914-761 Setúbal, Portugal
    INESC-ID, 1000-029 Lisboa, Portugal)

  • Joaquim Monteiro

    (INESC-ID, 1000-029 Lisboa, Portugal
    ISEL—Polytechnic Institute of Lisboa, 1959-007 Lisboa, Portugal)

  • José Fernando Silva

    (INESC-ID, 1000-029 Lisboa, Portugal
    IST—Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal)

Abstract

One of the main power quality issues that can affect variable speed drives (VSDs) is the occurrence of voltage sags on their AC power supply. Voltage sags can affect the inverter nominal operation, leading to a malfunction of the AC motor. This paper presents an inverter with resilient capability to voltage sags. The topology consists of two conventional three-phase bridge inverters arranged to require just a single DC source. This inverter is also characterized by a voltage multilevel operation, providing the full advantages of multilevel converters without the need for level balancing. Associated with this AC motor driver, a control system based on a field-oriented controller with a vector voltage modulator that will enable voltage sag ride-through capability is proposed. The proposed control system does not require any changes in the occurrence of voltage sags. To verify the characteristics of the proposed drive and control system, simulation tests are provided. Simulation results confirm the voltage sag resilient capability of the proposed multilevel converter.

Suggested Citation

  • Vitor Fernão Pires & Joaquim Monteiro & José Fernando Silva, 2019. "Dual 3-Phase Bridge Multilevel Inverters for AC Drives with Voltage Sag Ride-through Capability," Energies, MDPI, vol. 12(12), pages 1-18, June.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:12:p:2324-:d:240688
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    References listed on IDEAS

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    1. Daliang Yang & Li Yin & Shengguang Xu & Ning Wu, 2018. "Power and Voltage Control for Single-Phase Cascaded H-Bridge Multilevel Converters under Unbalanced Loads," Energies, MDPI, vol. 11(9), pages 1-18, September.
    2. Liang Chu & Yi-fan Jia & Dong-sheng Chen & Nan Xu & Yan-wei Wang & Xin Tang & Zhe Xu, 2017. "Research on Control Strategies of an Open-End Winding Permanent Magnet Synchronous Driving Motor (OW-PMSM)-Equipped Dual Inverter with a Switchable Winding Mode for Electric Vehicles," Energies, MDPI, vol. 10(5), pages 1-22, May.
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    Cited by:

    1. Pawel Szczepankowski & Jaroslaw Luszcz & Alexander Usoltsev & Natalia Strzelecka & Enrique Romero-Cadaval, 2021. "The Conceptual Research over Low-Switching Modulation Strategy for Matrix Converters with the Coupled Reactors," Energies, MDPI, vol. 14(3), pages 1-25, January.
    2. Freeman Chiranga & Lesedi Masisi, 2021. "Variable Speed Drive DC-Bus Voltage Dip Proofing," Energies, MDPI, vol. 14(24), pages 1-19, December.

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