Multi-task control for VSC-HVDC power and frequency control

O.A. Giddani, Abdelaziz Y.M. Abbas, Grain P. Adam, Olimpo Anaya-Lara, K.L. Lo

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


A robust control strategy for a VSC–HVDC transmission scheme between two ac networks is presented. The VSC converters at both ends of the dc line are equipped with a multi-task controller that facilitates: power management between the two ac systems, provision of independent reactive power control at the point of common couplings (PCCs) and frequency regulation at the sending-end side. The paper investigate the utilization of VSC–HVDC system to provide frequency regulation to an ac network; this is useful for networks with high penetration of renewables (e.g. wind), and nuclear generation. The proposed control strategies for the VSCs are presented in detail, investigating further the tuning method for the proper operation of the inner controllers. The robustness of the control system is tested under large disturbances. The study is conducted in Matlab/Simulink and results that substantiate the dynamic performance of the VSC–HVDC with the proposed control are thoroughly discussed.
Original languageEnglish
Pages (from-to) 684–690
Number of pages7
JournalInternational Journal of Electrical Power and Energy Systems
Early online date19 Jun 2013
Publication statusE-pub ahead of print - 19 Jun 2013


  • fault-ride through capability
  • power management
  • frequency control
  • pulse width modulation
  • reactive power compensation


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