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New Approaches to Circulating Current Controllers for Modular Multilevel Converters

Author

Listed:
  • Miguel Moranchel

    (Electronics Department, University of Alcalá, Escuela Politécnica, 28805 Alcalá de Henares, Spain)

  • Emilio Bueno

    (Electronics Department, University of Alcalá, Escuela Politécnica, 28805 Alcalá de Henares, Spain)

  • Inés Sanz

    (Electronics Department, University of Alcalá, Escuela Politécnica, 28805 Alcalá de Henares, Spain)

  • Francisco J. Rodríguez

    (Electronics Department, University of Alcalá, Escuela Politécnica, 28805 Alcalá de Henares, Spain)

Abstract

In the next years, modular multilevel converters (MMCs) are going to be a next generation multilevel converters for medium to high voltage conversion applications, such as medium voltage motor drives, medium voltage flexible AC transmission systems (FACTS) and high voltage direct current transmission. They provide advantages such as high modularity, availability, low generation of harmonics, etc. However, the circulating current distorts the leg currents and increases the rated current of power devices, which further increases system cost. This paper focuses on analysis and suppression of these currents in a MMC using two algorithms for tracking of harmonics. For this work resonant controllers and repetitive controllers have been selected. Both controllers are analyzed and simulations results are presented. Moreover, the controllers have been tested and validated for a three phase MMC operating as an inverter using a real processing platform based on Zynq by Xilinx and designed to control large multilevel converters and in a real MMC prototype. These results are provided to demonstrate the feasibility of the proposed method.

Suggested Citation

  • Miguel Moranchel & Emilio Bueno & Inés Sanz & Francisco J. Rodríguez, 2017. "New Approaches to Circulating Current Controllers for Modular Multilevel Converters," Energies, MDPI, vol. 10(1), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:1:p:86-:d:87745
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    References listed on IDEAS

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    1. Majid Mehrasa & Edris Pouresmaeil & Sasan Zabihi & Juan C. Trujillo Caballero & João P. S. Catalão, 2016. "A Novel Modulation Function-Based Control of Modular Multilevel Converters for High Voltage Direct Current Transmission Systems," Energies, MDPI, vol. 9(11), pages 1-14, October.
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    Cited by:

    1. Jahangeer Badar Soomro & Faheem Akhtar Chachar & Madad Ali Shah & Abdul Aziz Memon & Faisal Alsaif & Sager Alsulamy, 2023. "Optimized Circulating Current Control and Enhanced AC Fault Ride-through Capability Using Model Predictive Control for MMC-HVDC Applications," Energies, MDPI, vol. 16(13), pages 1-19, July.
    2. Joaquim Monteiro & Sónia Pinto & Aranzazu Delgado Martin & José Fernando Silva, 2017. "A New Real Time Lyapunov Based Controller for Power Quality Improvement in Unified Power Flow Controllers Using Direct Matrix Converters," Energies, MDPI, vol. 10(6), pages 1-13, June.
    3. Fernando Martinez-Rodrigo & Dionisio Ramirez & Alexis B. Rey-Boue & Santiago De Pablo & Luis Carlos Herrero-de Lucas, 2017. "Modular Multilevel Converters: Control and Applications," Energies, MDPI, vol. 10(11), pages 1-26, October.
    4. Seyed Mehdi Hakimi & Amin Hajizadeh, 2018. "Integration of Photovoltaic Power Units to Power Distribution System through Modular Multilevel Converter," Energies, MDPI, vol. 11(10), pages 1-13, October.
    5. 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.
    6. Murthy Priya & Pathipooranam Ponnambalam, 2022. "Circulating Current Control of Phase-Shifted Carrier-Based Modular Multilevel Converter Fed by Fuel Cell Employing Fuzzy Logic Control Technique," Energies, MDPI, vol. 15(16), pages 1-26, August.
    7. Mario Lopez & Hendrik Fehr & Marcelo A. Perez & Albrecht Gensior, 2021. "Pareto Frontier of the Arm Energy Ripple and the Conduction Losses of a Modular Multilevel Converter," Energies, MDPI, vol. 14(2), pages 1-20, January.
    8. Yiqi Liu & Danhua Li & Yu Jin & Qingbo Wang & Wenlong Song, 2018. "Research on Unbalance Fault-Tolerant Control Strategy of Modular Multilevel Photovoltaic Grid-Connected Inverter," Energies, MDPI, vol. 11(6), pages 1-18, May.

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