Research on Equivalent Modeling of Offshore Wind Farm Based on Single Machine Equivalent and Principal Component Analysis
Based on the practical project experience of offshore wind farms,this paper focuses on the analysis of the equivalent way of collecting lines of offshore wind farms and the equiv-alent modeling of offshore wind farms.Based on the advantages and disadvantages of single-machine equivalence and multi-machine equivalence in the current wind farm dynamic equiva-lence,and taking the actual wind farm as a reference,a double-layer equivalence method combining the single-machine equivalence method and the multi-machine equivalence method is proposed.According to the feeder distribution of wind turbines,the wind farm is equiva-lenced for a single unit,and then the principal component analysis method is used to extract the dominant variables for the units after the primary equivalence.This is used as the group-ing index of the secondary multi-machine equivalence and grouping the units to ensure the e-quivalence accuracy of the wind farm.The equivalent modeling performs secondary equiva-lent modeling for offshore wind farms.Through simulation verification,the equivalent sim-ulation model is compared with the actual detailed model to verify the feasibility of the equiv-alent method.
万方数据
维普
