MVMO-based tuning of Active Power Gradient Control of VSC-HVDC links for Frequency Support

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Abstract

The active power gradient (APG) control of MMC-HVDC links can contribute to frequency support in AC networks affected by severe active power imbalances. This functionality is particularly convenient if the coupled AC systems (through MMC-HVDC) have similar levels of available inertia. This paper tackles the problem of determining the optimal APG parameters that entail bounding frequency excursions within acceptable limits while helping to quickly damp out electromechanical oscillations. The tuning task is tackled as a single objective computationally expensive optimization problem. Since the optimization search procedure involves repetitive time-domain (RMS) simulations, the major challenge resides in solving the problem within reduced amount of fitness evaluations. In view of this, an emerging metaheuristic algorithm, namely, the mean-variance mapping optimization (MVMO) is selected. Numerical results prove the effectiveness of MVMO in finding the optimal solution within a few fitness evaluations.

Original languageEnglish
Title of host publication2nd International Conference on Smart Grid and Renewable Energy, SGRE 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781728129600
DOIs
Publication statusPublished - 1 Nov 2019
Event2nd International Conference on Smart Grid and Renewable Energy, SGRE 2019 - Doha, Qatar
Duration: 19 Nov 201921 Nov 2019

Conference

Conference2nd International Conference on Smart Grid and Renewable Energy, SGRE 2019
CountryQatar
CityDoha
Period19/11/1921/11/19

Keywords

  • Active power gradient
  • frequency control
  • MVMO
  • VSC-HVDC

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