On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants

Mohammadkazem Bakhshizadeh Dowlatabadi, Jesper Hjerrild, Łukasz Kocewiak, Frede Blaabjerg, Claus Leth Bak

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

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Abstract

In harmonic stability studies, stable operation of a power system must be ensured at any possible configuration. This leads to a large number of cases due to the high number of components in a power system. An aggregated model can be used to lower the complexity and to reduce the number of different cases. In other words, several similar converters (e.g. Wind Turbine Generators) can be replaced by a converter with larger ratings. In most cases, aggregated models work well for stability studies, however, in some cases the aggregation might result in a wrong evaluation of stability. The aggregation reduces the complexity of the system by removing some statevariables of the overall system matrices; however, sometimes these removed variables contain some important information about the stability of the system. In this paper this problem is shown by a case study and it is evaluated by different methods, and a solution is also proposed.
Original languageEnglish
Title of host publicationProceedings of 16th Wind Integration Workshop
Number of pages4
PublisherEnergynautics GmbH
Publication dateOct 2017
Publication statusPublished - Oct 2017
Event16th Wind Integration Workshop - Berlin, Germany
Duration: 25 Oct 201727 Oct 2017

Conference

Conference16th Wind Integration Workshop
CountryGermany
CityBerlin
Period25/10/201727/10/2017

Fingerprint

Wind power
Power plants
Agglomeration
Turbogenerators
Wind turbines

Keywords

  • Aggregation
  • Harmonic stability
  • Model Order Reduction
  • Voltage Source Converter
  • Wind Power

Cite this

Dowlatabadi, M. B., Hjerrild, J., Kocewiak, Ł., Blaabjerg, F., & Bak, C. L. (2017). On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants. In Proceedings of 16th Wind Integration Workshop Energynautics GmbH.
Dowlatabadi, Mohammadkazem Bakhshizadeh ; Hjerrild, Jesper ; Kocewiak, Łukasz ; Blaabjerg, Frede ; Bak, Claus Leth. / On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants. Proceedings of 16th Wind Integration Workshop. Energynautics GmbH, 2017.
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Dowlatabadi, MB, Hjerrild, J, Kocewiak, Ł, Blaabjerg, F & Bak, CL 2017, On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants. in Proceedings of 16th Wind Integration Workshop. Energynautics GmbH, 16th Wind Integration Workshop, Berlin, Germany, 25/10/2017.

On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants. / Dowlatabadi, Mohammadkazem Bakhshizadeh; Hjerrild, Jesper ; Kocewiak, Łukasz; Blaabjerg, Frede; Bak, Claus Leth.

Proceedings of 16th Wind Integration Workshop. Energynautics GmbH, 2017.

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

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AU - Dowlatabadi, Mohammadkazem Bakhshizadeh

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AB - In harmonic stability studies, stable operation of a power system must be ensured at any possible configuration. This leads to a large number of cases due to the high number of components in a power system. An aggregated model can be used to lower the complexity and to reduce the number of different cases. In other words, several similar converters (e.g. Wind Turbine Generators) can be replaced by a converter with larger ratings. In most cases, aggregated models work well for stability studies, however, in some cases the aggregation might result in a wrong evaluation of stability. The aggregation reduces the complexity of the system by removing some statevariables of the overall system matrices; however, sometimes these removed variables contain some important information about the stability of the system. In this paper this problem is shown by a case study and it is evaluated by different methods, and a solution is also proposed.

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Dowlatabadi MB, Hjerrild J, Kocewiak Ł, Blaabjerg F, Bak CL. On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants. In Proceedings of 16th Wind Integration Workshop. Energynautics GmbH. 2017