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PWM Carrier Displacement in Multi-N-Phase Drives: An Additional Degree of Freedom to Reduce the DC-Link Stress

Author

Listed:
  • Michela Diana

    (Dipartimento Energia, Politecnico di Torino, 10129 Torino, Italy
    These authors contributed equally to this work.)

  • Riccardo Ruffo

    (Dipartimento Energia, Politecnico di Torino, 10129 Torino, Italy
    These authors contributed equally to this work.)

  • Paolo Guglielmi

    (Dipartimento Energia, Politecnico di Torino, 10129 Torino, Italy
    These authors contributed equally to this work.)

Abstract

The paper presents a particular Pulse Width Modulation (PWM) strategy to reduce the (Direct Current) DC-link capacitor stress for multi-n-phase drives. A multi-n-phase drive is composed of multiple independent systems of n inverter supplying a multi-n-phase electric machine. The paper focused on the investigation of the best phase shifting between carriers for a triple-3-phase drive compared to the 3-phase counterpart in order to reduce the capacitor bench design point. Simulation and experimental results show as the control technique proposed is able to reduce the value of the DC-link capacitor current in any operating condition including fault case. In this sense, the PWM carrier displacement appears like an additional degree of freedom that can be exploited in multi-n-phase drives but also in multi-motor application.

Suggested Citation

  • Michela Diana & Riccardo Ruffo & Paolo Guglielmi, 2018. "PWM Carrier Displacement in Multi-N-Phase Drives: An Additional Degree of Freedom to Reduce the DC-Link Stress," Energies, MDPI, vol. 11(2), pages 1-21, February.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:443-:d:132132
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    References listed on IDEAS

    as
    1. Ping Zheng & Fan Wu & Yu Lei & Yi Sui & Bin Yu, 2013. "Investigation of a Novel 24-Slot/14-Pole Six-Phase Fault-Tolerant Modular Permanent-Magnet In-Wheel Motor for Electric Vehicles," Energies, MDPI, vol. 6(10), pages 1-23, September.
    2. Yi Sui & Ping Zheng & Fan Wu & Bin Yu & Pengfei Wang & Jiawei Zhang, 2014. "Research on a 20-Slot/22-Pole Five-Phase Fault-Tolerant PMSM Used for Four-Wheel-Drive Electric Vehicles," Energies, MDPI, vol. 7(3), pages 1-23, March.
    3. Feng Yu & Ming Cheng & Kwok Tong Chau & Feng Li, 2015. "Control and Performance Evaluation of Multiphase FSPM Motor in Low-Speed Region for Hybrid Electric Vehicles," Energies, MDPI, vol. 8(9), pages 1-19, September.
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    Cited by:

    1. Markel Fernandez & Andres Sierra-Gonzalez & Endika Robles & Iñigo Kortabarria & Edorta Ibarra & Jose Luis Martin, 2020. "New Modulation Technique to Mitigate Common Mode Voltage Effects in Star-Connected Five-Phase AC Drives," Energies, MDPI, vol. 13(3), pages 1-19, January.

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