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Impact of AC-line-emulation controllers of VSC-HVDC links on inter-area-oscillation damping

J. Renedo, L. Rouco, L. Sigrist, A. García-Cerrada

This paper presents a fundamental study on the impact of AC-line-emulation controllers of High Voltage Direct Current links based on Voltage Source Converters (VSC-HVDC) on inter-area-oscillation damping. The analysis has been carried out using eigenvalue and frequency-domain methods. The results presented in the paper show that an AC-line-emulation controller in a VSC-HVDC link can have either a positive or negative impact on the damping ratio of inter-area modes, depending on the value of the filter time constant of the controller. The study concludes that the filter time constant must be high enough to avoid negative interactions of this control alternative on power oscillations and the paper provides guidelines for the design of this parameter.


Keywords: HVDC transmission, VSC-HVDC, AC line emulation control, power oscillation damping, power system stability.

45th Annual Conference of the IEEE Industrial Electronics Society, Lisbon, Lisbon (Portugal). 14 October 2019

Publication date: October 2019.



Citation:
J. Renedo, L. Rouco, L. Sigrist, A. García-Cerrada, Impact of AC-line-emulation controllers of VSC-HVDC links on inter-area-oscillation damping, 45th Annual Conference of the IEEE Industrial Electronics Society - IECON 2019. pp. 1-6, Lisboa, Portugal, 14-17 October 2019


    Research topics:
  • Stability: large disturbance stability, tuning of frequency loadshedding schemes, excitation control, small disturbance stability, tuning of power system stabilizers, identification of AVR and governor models
  • HVDC/FACTS
  • Power electronics

IIT-17-191A

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