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Interaction Assessment and Stability Analysis of the MMC-Based VSC-HVDC Link

Author

Listed:
  • Saman Dadjo Tavakoli

    (CITCEA-UPC, Department of Electrical Engineering, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain)

  • Eduardo Prieto-Araujo

    (CITCEA-UPC, Department of Electrical Engineering, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain)

  • Enric Sánchez-Sánchez

    (CITCEA-UPC, Department of Electrical Engineering, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain)

  • Oriol Gomis-Bellmunt

    (CITCEA-UPC, Department of Electrical Engineering, Universitat Politècnica de Catalunya, Av. Diagonal 647, 08028 Barcelona, Spain)

Abstract

This paper investigates the dynamic behavior of a modular multi-level converter (MMC)-based HVDC link. An overall state-space model is developed to identify the system critical modes, considering the dynamics of the master MMC and slave MMC, their control systems, and the HVDC cable. Complementary to the state-space model, an impedance-based model is also derived to obtain the minimum phase margin (PM) of the system. In addition, a relative gain array (RGA) analysis is conducted to quantify the level of interactions among the control systems of master and slave MMCs and their impacts on stability. Finally, with the help of the results obtained from the system analysis (eigenvalue, phase margin, sensitivity, and RGA), the system dynamic performance is improved.

Suggested Citation

  • Saman Dadjo Tavakoli & Eduardo Prieto-Araujo & Enric Sánchez-Sánchez & Oriol Gomis-Bellmunt, 2020. "Interaction Assessment and Stability Analysis of the MMC-Based VSC-HVDC Link," Energies, MDPI, vol. 13(8), pages 1-19, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:8:p:2075-:d:348397
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    References listed on IDEAS

    as
    1. Ricardo Vidal-Albalate & Jaume Forner, 2020. "Modeling and Enhanced Control of Hybrid Full Bridge–Half Bridge MMCs for HVDC Grid Studies," Energies, MDPI, vol. 13(1), pages 1-26, January.
    2. Waqar Uddin & Kamran Zeb & Muhammad Adil Khan & Muhammad Ishfaq & Imran Khan & Saif ul Islam & Hee-Je Kim & Gwan Soo Park & Cheewoo Lee, 2019. "Control of Output and Circulating Current of Modular Multilevel Converter Using a Sliding Mode Approach," Energies, MDPI, vol. 12(21), pages 1-22, October.
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    Cited by:

    1. Luís F. N. Lourenço & Filipe Perez & Alessio Iovine & Gilney Damm & Renato M. Monaro & Maurício B. C. Salles, 2021. "Stability Analysis of Grid-Forming MMC-HVDC Transmission Connected to Legacy Power Systems," Energies, MDPI, vol. 14(23), pages 1-25, December.

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