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A New SVPWM Strategy for Three-Phase Isolated Converter with Current Ripple Reduction

Author

Listed:
  • Sheng Wang

    (Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Huaibao Wang

    (Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Hao Ding

    (Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Ligen Xun

    (Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China)

  • Sifan Wu

    (Department of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China)

Abstract

Three-phase isolated matrix converters enable bidirectional power conversion and galvanic isolation, and they are suitable for widespread applications in industry. However, excessive DC-link current ripple not only increases the inductor loss and switching loss but also causes more electromagnetic interference and grid current distortion. Traditionally, increasing DC-link inductance or switching frequency can reduce the current ripple to a certain extent, but it is not cost-effective due to the bulky size of the inductor and higher switching losses. To address the above issue, optimizing the modulation control strategy is more attractive. This paper proposes a new SVPWM strategy to reduce the current ripple. First, the inherent limitation of the conventional modulation scheme is revealed. Then, the new optimal modulation scheme is proposed for the isolated matrix converters to reduce the current ripple without increasing the DC-link inductor or switching frequency. Moreover, the power density of the system is effectively increased. Finally, simulation in a MATLAB environment and a laboratory prototype of the isolated matrix converter have been built to verify the effectiveness of the proposed strategy.

Suggested Citation

  • Sheng Wang & Huaibao Wang & Hao Ding & Ligen Xun & Sifan Wu, 2021. "A New SVPWM Strategy for Three-Phase Isolated Converter with Current Ripple Reduction," Energies, MDPI, vol. 14(16), pages 1-15, August.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:16:p:4966-:d:613741
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    References listed on IDEAS

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    1. Alberto Duran & Efrain Ibaceta & Matias Diaz & Felix Rojas & Roberto Cardenas & Hector Chavez, 2020. "Control of a Modular Multilevel Matrix Converter for Unified Power Flow Controller Applications," Energies, MDPI, vol. 13(4), pages 1-18, February.
    2. Karim Kadem & Mohamed Bensetti & Yann Le Bihan & Eric Labouré & Mustapha Debbou, 2021. "Optimal Coupler Topology for Dynamic Wireless Power Transfer for Electric Vehicle," Energies, MDPI, vol. 14(13), pages 1-18, July.
    3. Mustafa Al-Tameemi & Yushi Miura & Jia Liu & Hassan Bevrani & Toshifumi Ise, 2020. "A Novel Control Scheme for Multi-Terminal Low-Frequency AC Electrical Energy Transmission Systems Using Modular Multilevel Matrix Converters and Virtual Synchronous Generator Concept," Energies, MDPI, vol. 13(3), pages 1-19, February.
    4. Lluís Monjo & Luis Sainz & Juan José Mesas & Joaquín Pedra, 2021. "State-Space Model of Quasi-Z-Source Inverter-PV Systems for Transient Dynamics Studies and Network Stability Assessment," Energies, MDPI, vol. 14(14), pages 1-15, July.
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