### Abstract

Original language | English |
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Title of host publication | Proceedings of 16th Wind Integration Workshop |

Number of pages | 4 |

Publisher | Energynautics GmbH |

Publication date | Oct 2017 |

Publication status | Published - Oct 2017 |

Event | 16th Wind Integration Workshop - Berlin, Germany Duration: 25 Oct 2017 → 27 Oct 2017 |

### Conference

Conference | 16th Wind Integration Workshop |
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Country | Germany |

City | Berlin |

Period | 25/10/2017 → 27/10/2017 |

### Fingerprint

### Keywords

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

### Cite this

*Proceedings of 16th Wind Integration Workshop*Energynautics GmbH.

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*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.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - On Aggregation Requirements for Harmonic Stability Analysis in Wind Power Plants

AU - Dowlatabadi, Mohammadkazem Bakhshizadeh

AU - Hjerrild, Jesper

AU - Kocewiak, Łukasz

AU - Blaabjerg, Frede

AU - Bak, Claus Leth

PY - 2017/10

Y1 - 2017/10

N2 - 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.

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.

KW - Aggregation

KW - Harmonic stability

KW - Model Order Reduction

KW - Voltage Source Converter

KW - Wind Power

UR - http://windintegrationworkshop.org/wp-content/uploads/sites/6/2017/07/WIW17_program_WEB.pdf

M3 - Article in proceeding

BT - Proceedings of 16th Wind Integration Workshop

PB - Energynautics GmbH

ER -