Aggregation of Type-4 Large Wind Farms Based on Admittance Model Order Reduction

Jaime Martínez-Turégano, Salvador Añó-Villalba, Soledad Bernal-Perez and Ramon Blasco-Gimenez
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Jaime Martínez-Turégano: Instituto de Automática e Informática Industrial, Universitat Politècnica de València, 46022 Valencia, Spain
Salvador Añó-Villalba: Instituto de Automática e Informática Industrial, Universitat Politècnica de València, 46022 Valencia, Spain
Soledad Bernal-Perez: Instituto de Automática e Informática Industrial, Universitat Politècnica de València, 46022 Valencia, Spain
Ramon Blasco-Gimenez: Instituto de Automática e Informática Industrial, Universitat Politècnica de València, 46022 Valencia, Spain

Energies, 2019, vol. 12, issue 9, 1-21

Abstract: This paper presents an aggregation technique based on the resolution of a multi-objective optimization problem applied to the admittance model of a wind power plant (WPP). The purpose of the presented aggregation technique is to reduce the order of the wind power plant model in order to accelerate WPP simulation while keeping a very similar control performance for both the simplified and the detailed models. The proposed aggregation technique, based on the admittance model order reduction, ensures the same DC gain, the same gain at the operating band frequency, and the same resonant peak frequency as the detailed admittance model. The proposed aggregation method is validated considering three 400-MW grid-forming Type-4 WPPs connected to a diode rectifier HVDC link. The proposed aggregation technique is compared to two existing aggregation techniques, both in terms of frequency and time response. The detailed and aggregated models have been tested using PSCAD-EMTsimulations, with the proposed aggregated model leading to a 350-fold reduction of the simulation time with respect to the detailed model. Moreover, for the considered scenario, the proposed aggregation technique offers simulation errors that are, at least, three-times smaller than previously-published aggregation techniques.

Keywords: off-shore wind farms; wind farm aggregation; admittance model order reduction; HVDC diode rectifiers; grid-forming wind turbines (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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