Enhanced Wind Power Plant Control Strategy during Stressed Voltage Conditions

Moumita Sarkar*, Theodoros Souxes, Anca Daniela Hansen, Poul E. Sørensen, Costas D. Vournas

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Increasing renewable energy sources in power system has brought forth many challenges in terms of power system stability, one of which is voltage stability. Preventive and corrective actions to alleviate voltage instability are mainly developed for traditional power systems without high share of renewables. This article aims to assess the reactive power based voltage support from wind power plants under stressed voltage conditions. Firstly, the performances of the conventional wind power plant control strategies applied during stressed voltage conditions are studied. A novel enhanced wind power plant control strategy is developed, which increases wind power plant reactive power capability through control of wind power plant tap changing transformer. Performance of this novel strategy is compared and evaluated against the conventional wind power plant control strategies applied during the stressed voltage conditions. Results show that the developed control strategy helps in alleviating voltage instability 5% more effectively when compared to the conventional WPP control strategies applied during stressed voltage conditions. The developed control strategy is implemented and simulated in a snapshot of the Hellenic power system to verify the implementation feasibility and effectiveness in a real large power system.
Original languageEnglish
JournalIEEE Access
Volume8
Pages (from-to)120025-120035
Number of pages11
ISSN2169-3536
DOIs
Publication statusPublished - 2020

Keywords

  • Control strategies
  • Reactive power support
  • Stress conditions
  • Voltage stability
  • Voltage support
  • Wind power
  • Wind power plant

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