Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis

Lukasz Hubert Kocewiak, Jesper Hjerrild , Claus Leth Bak

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

2 Citations (Scopus)
814 Downloads (Pure)

Abstract

This paper presents stability analysis of wind farms in frequency domain. The interaction between the wind turbine control system and the wind farm structure in wind farms is deeply investigated. Two wind farms (i.e. Horns Rev II and Karnice) are taken in to consideration in the study. It is shown that wind farm components such as long HVAC cables and park transformers can introduce significant low-frequency series resonances seen form the wind turbine terminals which can affect wind turbine control system operation and overall wind farm stability. The same wind turbine converter control strategy is evaluated in two different wind farms. It is emphasized that the grid-side converter controller should be characterized by sufficient harmonic/noise rejection and adjusted depending on wind farms to which it is connected. Various stability indices such as gain margin, vector gain margin, and phase margin are used in order to emphasize differences between the two wind farms.
Original languageEnglish
Title of host publicationProceedings of the EWEA 2012 - Europe's Primier Wind Energy Event
Number of pages8
Publication date2012
Publication statusPublished - 2012
EventEWEA 2012: Europe's Primier Wind Energy Event - Bella Center, Copenhagen, Denmark, Copenhagen, Denmark
Duration: 16 Apr 201219 Apr 2012

Conference

ConferenceEWEA 2012
LocationBella Center, Copenhagen, Denmark
CountryDenmark
CityCopenhagen
Period16/04/201219/04/2012

Fingerprint

Wind turbines
Farms
Systems analysis
Control systems
Cables
Controllers

Keywords

  • Offshore wind farms
  • Stability analysis
  • Stability margins
  • Wind farm aggregation
  • Wind turbine control

Cite this

Kocewiak, L. H., Hjerrild , J., & Bak, C. L. (2012). Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis. In Proceedings of the EWEA 2012 - Europe's Primier Wind Energy Event
Kocewiak, Lukasz Hubert ; Hjerrild , Jesper ; Bak, Claus Leth. / Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis. Proceedings of the EWEA 2012 - Europe's Primier Wind Energy Event. 2012.
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Kocewiak, LH, Hjerrild , J & Bak, CL 2012, Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis. in Proceedings of the EWEA 2012 - Europe's Primier Wind Energy Event., Copenhagen, Denmark, 16/04/2012.

Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis. / Kocewiak, Lukasz Hubert; Hjerrild , Jesper ; Bak, Claus Leth.

Proceedings of the EWEA 2012 - Europe's Primier Wind Energy Event. 2012.

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

TY - GEN

T1 - Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis

AU - Kocewiak, Lukasz Hubert

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N2 - This paper presents stability analysis of wind farms in frequency domain. The interaction between the wind turbine control system and the wind farm structure in wind farms is deeply investigated. Two wind farms (i.e. Horns Rev II and Karnice) are taken in to consideration in the study. It is shown that wind farm components such as long HVAC cables and park transformers can introduce significant low-frequency series resonances seen form the wind turbine terminals which can affect wind turbine control system operation and overall wind farm stability. The same wind turbine converter control strategy is evaluated in two different wind farms. It is emphasized that the grid-side converter controller should be characterized by sufficient harmonic/noise rejection and adjusted depending on wind farms to which it is connected. Various stability indices such as gain margin, vector gain margin, and phase margin are used in order to emphasize differences between the two wind farms.

AB - This paper presents stability analysis of wind farms in frequency domain. The interaction between the wind turbine control system and the wind farm structure in wind farms is deeply investigated. Two wind farms (i.e. Horns Rev II and Karnice) are taken in to consideration in the study. It is shown that wind farm components such as long HVAC cables and park transformers can introduce significant low-frequency series resonances seen form the wind turbine terminals which can affect wind turbine control system operation and overall wind farm stability. The same wind turbine converter control strategy is evaluated in two different wind farms. It is emphasized that the grid-side converter controller should be characterized by sufficient harmonic/noise rejection and adjusted depending on wind farms to which it is connected. Various stability indices such as gain margin, vector gain margin, and phase margin are used in order to emphasize differences between the two wind farms.

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KW - Stability analysis

KW - Stability margins

KW - Wind farm aggregation

KW - Wind turbine control

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Kocewiak LH, Hjerrild J, Bak CL. Wind Turbine Control Impact on Stability of Wind Farms Based on Real-Life Systems Analysis. In Proceedings of the EWEA 2012 - Europe's Primier Wind Energy Event. 2012