Implementation of Simplified Models of Local Controller for Multi-terminal HVDC Systems in DIgSILENT PowerFactory

  • Francisco M. Gonzalez-Longatt
  • J. M. Roldan
  • José Luis Rueda
  • C. A. Charalambous
  • B. S. Rajpurohit
Part of the Power Systems book series (POWSYS)


The North Sea has a vast potential for renewable energy generation: offshore wind power, tidal and wave energy. The voltage source converter (VSC) and high voltage direct current (HVDC) systems are more flexible than their AC counterparts. This offers distinct advantages for integrating offshore wind farms to inland grid system. It seems that advances on technologies open the door for VSC-HVDC systems at higher voltage and at higher power range, which is making multi-terminal HVDC (MTDC) system technically feasible. The control system for MTDC consists of a central master controller and local terminal controllers at the site of each converter station. The terminal controllers (outer controllers) are mainly responsible for active power control, reactive power control, DC voltage regulation and AC voltage regulation. Typical MTDC consists of several VSC-HVDC terminals connected together, and different operation mode and controllers allows them interact together. DC voltage controllers play a very important role on the DC network performance. There are several DC voltage control strategies possible: voltage margin, two-stage direct voltage controller, three-stage direct voltage controller, voltage droop, etc. The contribution of this book’s chapter is to present some of the main aspects regarding the modelling and simulation of two control strategies: voltage margin method (VMM) and standard voltage droop (SVD). To this end, theoretical aspects of controllers are presented and are used to develop DIgSILENT simulation language (DSL) models. The developed models are used to evaluate the performance a simple 3-terminal HVDC system.


HVDC transmission HVDC converter Load flow analysis VSC-HVDC 

Supplementary material (310 kb)
Supplementary material 1 (ZIP 310 kb)


  1. 1.
    Gonzalez-Longatt F (2014) Frequency Control and Inertial Response Schemes for the Future Power Networks. In: Hossain J, Mahmud A (eds) Advances in technologies for generation, transmission and storage, green energy and technology series, vol VIII. Springer, Singapore, p 363Google Scholar
  2. 2.
    UN (2011) The conference of the parties (15 Mar 2011). The Cancun agreement. FCCC/CP/2010/7/Add.1, Decision 1/CP.16, The Cancun agreements: outcome of the work of the Ad Hoc working group on long-term cooperative action under the convention. Decision (1/CP.16). Available from
  3. 3.
    EUREL Electrical Power Vision 2040 for Europe (Online). Available from…/EUREL-PV2040-Full_Version_Web.pdf
  4. 4.
    GOV. UK (2011) Policy reducing the UK’s greenhouse gas emissions by 80 % by 2050. Available from
  5. 5.
    legislation. gov. UK (2008) Climate Change Act 2008. Available from
  6. 6.
    Winzer C (2012) Conceptualizing energy security, Energy Policy, 46:36–48Google Scholar
  7. 7.
    DECC (2013) Department of energy and climate change. Available from
  8. 8.
    EWEA (2011) European wind energy association: policy/project—offshore wind. Available from
  9. 9.
    Cornago AA (2011) Can the European supergrid become reality? Available from
  10. 10.
    Chauhan RK, Rajpurohit BS, Singh SN, Gonzalez-Longatt FM (2014) DC grid interconnection for conversion losses and cost optimization. In: Mahmud A, Hossain J (eds) Renewable energy integration. Springer, Singapore, pp 327–345CrossRefGoogle Scholar
  11. 11.
    FOSG (2011) Friends of the Supergrid. Available from
  12. 12.
    FOSG (2010) Friends of Supergrind. Position paper on the EC Communication for a European Infrastructure Package. Available from
  13. 13.
    Haileselassie TM (2008) Control of multi-terminal VSC-HVDC systems, master of science in energy and environment. Department of Electrical Power Engineering, Norwegian University of Science and Technology, TrondheimGoogle Scholar
  14. 14.
    Gonzalez-Longatt F, Roldan J (2012) Effects of DC voltage control strategies of voltage response on multi-terminal HVDC following a disturbance. In: 47th International Universities Power Engineering Conference (UPEC 2012), pp 1–6Google Scholar
  15. 15.
    Gonzalez-Longatt F, Roldan J, Charalambous CA (2012) Power flow solution on multi-terminal HVDC systems: supergrid case. Presented at the international conference on renewable energies and power quality (ICREPQ’12), Santiago de CompostelaGoogle Scholar
  16. 16.
    Vrana TK, Torres-Olguin RE, Liu B, Haileselassie TM (2010) The North Sea super grid—a technical perspective. In: ACDC. 9th IET international conference on AC and DC power transmission, 2010, pp 1–5Google Scholar
  17. 17.
    Van Hertem D, Ghandhari M, Delimar M (2010) Technical limitations towards a Supergrid: a European prospective. In: 2010 IEEE International, Energy Conference and Exhibition (EnergyCon), pp 302–309Google Scholar
  18. 18.
    Van Hertem D, Ghandhari M (2010) Multi-terminal VSC HVDC for the European supergrid: Obstacles. Renew Sustain Energy Rev 14:3156–3163CrossRefGoogle Scholar
  19. 19.
    Zhu J, Booth C (2010) Future multi-terminal HVDC transmission systems using voltage source converters. Presented at the 45th international universities power engineering conference (UPEC), 2010 Cardiff, WalesGoogle Scholar
  20. 20.
    Nakajima T, Irokawa S (1999) A control system for HVDC transmission by voltage sourced converters. In: Power engineering society summer meeting, 1999. IEEE, vol. 2, pp 1113–1119Google Scholar
  21. 21.
    Seki N (2000) Field testing of 53 MVA three-terminal DC link between power system using GTO converters. In: IEEE power engineering society winter meeting 2000, pp 2504–2508Google Scholar
  22. 22.
    Wang J, Li X, Qiu X (2005) Power system research on distributed generation penetration. Autom Electr Power Syst 29:97–99Google Scholar
  23. 23.
    Cole S (2010) Steady-State and Dynamic Modelling of VSC HVDC Systems for Power Systems Simulation, Doctor in de Ingenieurswetenschappen Doctor in de ingenieurswetenschappen, Faculteit Ingenieurswetenschappen, Departement Elektrotechniek. Universiteit Leuven, BelgiumGoogle Scholar
  24. 24.
    Wang W, Barnes M (2014) Power flow algorithms for multi-terminal VSC-HVDC with droop control. IEEE Trans Power Syst 29(4):1721–7930. doi: 10.1109/TPWRS.2013.2294198
  25. 25.
    Haileselassie TM, Uhlen K (2010) Primary frequency control of remote grids connected by multi-terminal HVDC. In: General Meeting, 2010 IEEE on power and energy society, pp 1–6Google Scholar
  26. 26.
    Hendriks RL, Paap GC, Kling WL (2007) Control of a multiterminal VSC transmission scheme for connecting offshore wind farms. In: European Wind Energy Conference, Milan, ItalyGoogle Scholar
  27. 27.
    Stagg GW, El-Abiad AH (1968) Computer methods in power system analysis. McGraw-Hill, New YorkGoogle Scholar
  28. 28.
    Gonzalez-Longatt F, Roldan J, Burgos-Payán M, Terzija V (2012) Implications of the DC Voltage Control Strategy on the Dynamic Behavior of Multi-terminal HVDC following a Converter Outage, presented at the CIGRE-UK and European T&D network solutions to the challenge of increasing levels of renewable generation. Newcastle-under-Lyme College, Staffordshire, United KingdomGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Francisco M. Gonzalez-Longatt
    • 1
  • J. M. Roldan
    • 2
  • José Luis Rueda
    • 3
  • C. A. Charalambous
    • 4
  • B. S. Rajpurohit
    • 5
  1. 1.School of Electronic, Electrical and Systems EngineeringLoughborough UniversityLoughboroughUK
  2. 2.Escuela Superior de IngenieríaUniversidad de SevillaSevilleSpain
  3. 3.Department of Electrical Sustainable EnergyDelft University of TechnologyCD DelftThe Netherlands
  4. 4.Department of Electrical and Computer EngineeringUniversity of CyprusNicosiaCyprus
  5. 5.School of Computing and Electrical EngineeringIndian Institute of Technology MandiMandiIndia

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