Research Output
Analysis of integration of multi-terminal HVDC network to weak grids.
  In this paper, the integration of multi-terminal HVDC systems to weak power grids is analysed under different grid strengths and control methods. In this paper, a modular multi-level converter based MTDC network is considered. The analysis showed the importance of voltage control of DC network. The voltage control of DC network needs to be performed from the converter station connected to the strongest AC network. Furthermore, the analysis shows that either droop or PI control can be used for controlling the DC voltage of the MTDC network connected to one or more weak grids. However, the droop control of DC voltage provides faster response compared to PI with larger steady state error. Finally, the analysis showed that the MMC-based MTDC is capable of ride-through unbalanced AC side faults even if the faults occur in a weak grid.

  • Type:

    Conference Paper (unpublished)

  • Date:

    28 June 2018

  • Publication Status:


  • Library of Congress:

    TK Electrical engineering. Electronics Nuclear engineering

  • Dewey Decimal Classification:

    621.31 Electric power generation, transmission & storage

  • Funders:

    Engineering and Physical Sciences Research Council


Givaki, K., Rahman, M. H., Vozikis, D., & Giveki, A. (2018, June). Analysis of integration of multi-terminal HVDC network to weak grids. Paper presented at The 14th IET International Conference on AC and DC Power Transmission (ACDC 2018), Chengdu, China



Multi-Terminal HVDC; Vector Current Control, Weak Grid, DC Voltage Control, Voltage Control, Modular Multi-Level, Convertor,

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