Abstract
This paper presents a technique for developing an equivalent model for a large-scale wind farms that captures the important electrical transients of interest that arise during power system disturbances. The layout of the wind farm, the size and type of conductors used, and the diversity in wind speed all influence the performance of the equivalent model during disturbances. The grouping algorithm focuses on the transient interaction of individual wind turbines and represents the detailed model by a multi-machine equivalent. The equivalencing procedure is illustrated through case studies that are modelled and verified using DIgSILENT PowerFactory simulations. A good comparison is achieved for all simulation scenarios while comparing the equivalent and detailed models. Equivalent models derived on the basis of this proposed approach reduce the computation effort without significant loss in accuracy, which will be especially useful while assessing large-scale wind farm integration.
Published Version
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