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Modelling of VSC-HVDC multi-terminal systems for small-signal angle stability analysis

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

15th IET International Conference on AC and DC Power Transmission - ACDC 2019, Coventry (United Kingdom). 05-07 February 2019


Summary:

This paper presents a model for small-signal analysis (SSA) of the angle stability of hybrid high-voltage AC (HVAC) systems containing high-voltage DC multi-terminal systems based on Voltage Source Converters (VSC-HVDC). The model developed is highly flexible and makes it possible to seamlessly adapt existing tools for SSA of HVAC systems to be used for hybrid HVAC/VSC-HVDC systems. The proposed small-signal model has been validated and has been used to analyse the impact of an active-power control strategy on power oscillations. The strategy was previously used to improve transient stability in the same type of systems. Results show that the strategy analysed can also help to damp inter-area power oscillations.


Keywords: VSC-HVDC, multi-terminal, small-signal stability analysis, power oscillation damping.


DOI: DOI icon https://doi.org/10.1049/cp.2019.0046

Published in ACDC 2019, pp: 1-7, ISBN: 978-1-83953-007-4

Publication date: 2019-02-05.



Citation:
J. Renedo, L. Sigrist, A. García-Cerrada, L. Rouco, Modelling of VSC-HVDC multi-terminal systems for small-signal angle stability analysis, 15th IET International Conference on AC and DC Power Transmission - ACDC 2019, Coventry (United Kingdom). 05-07 February 2019. In: ACDC 2019: Conference proceedings, e-ISBN: 978-1-83953-007-4


    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

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