Research on Equivalent Modeling of Wind Farm Based on Error Correction Method

Abstract

Aiming at the error between output characteristics of equivalent model and detailed model for wind farm. This paper proposes a wind farm equivalent modeling method based on error correction model (ECM). Firstly, the wind turbine generator (WTG) operation parameters that affect the operation characteristics of the wind farm clustering equivalent model are analyzed, so the clustering index of the clustering equivalent model is determined, and the wind farm clustering equivalent model is constructed by capacity weighting method. Secondly, based on the data-physics hybrid modeling framework proposed in this paper, the ECM is obtained by training corresponding data through deep learning algorithm. Finally, the detailed model, single equivalent model, clustering equivalent model and the proposed model based on the ECM are compared and analyzed in the electromagnetic transient simulation software. The result proves that the proposed equivalent model can accurately reflect the operation characteristics of the detailed model.