Aggregation of Wind Turbine Grid-Side Inverters by Voltage Angle and Cable Resonance Compensation

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The aggregation of wind power plant (WPP) radial is a useful way to speed up the simulation and simplify the analysis of large-scale WPP. The traditional aggregation method for radial is to make the voltage drop or power loss across inter-turbine cables be equal between aggregated model and unaggregated model. However, the accuracy in high frequency range is not guaranteed in these two aggregated models. And the difference between the output voltage angle of each wind turbine (WT) in a radial is not taken into accounts, so the mismatch might be observed in each channel of aggregated model and unaggregated model with asymmetrical WT control. To deal with this issue, this paper presents an aggregated model for WTs with the ability to compensate inaccuracy in high frequency range and the difference in each channel by adding the compensation inductor to the aggregated WT. The analysis shows that the effective output admittance of the aggregated model matches well with the unaggregated model, thus the small-signal dynamics of WPP are not change after aggregation. The frequency scan and step response test performed in PSCAD/EMTDC simulation verify the accuracy of aggregated model.
Original languageEnglish
Title of host publication2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
Number of pages8
PublisherIEEE
Publication date2021
Pages403-410
ISBN (Print)978-1-7281-6128-0
ISBN (Electronic)978-1-7281-5135-9
DOIs
Publication statusPublished - 2021
Event13th IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Virtual, Online, Canada
Duration: 10 Oct 202114 Oct 2021

Conference

Conference13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Country/TerritoryCanada
CityVirtual, Online
Period10/10/202114/10/2021
SponsorGMW Associates, IEEE Industry Applications Society (IAS), IEEE Power Electronics Society (PELS), Opal-RT Technologies, STMicroelectronics
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

Keywords

  • aggregation
  • impedance model
  • offshore wind power

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