DANSK DSF/IEC TR 61400-21-3 ED1 PDF

This TR provides guidance on principles which can be used as the basis for determining the application, structure, recommended requirements for WT harmonic model. For the purposes of this TR, a harmonic model means a model that represents harmonic emissions of different WT types interacting with the connected network. This TR is focused on providing technical guidance concerning the WT harmonic model. The TR describes the harmonic model in detail covering such aspects as application, structure as well as validation. By introducing a common understanding of the WT representation from a harmonic performance perspective, the TR aims to bring the overall concept of the harmonic model closer to the industry (e.g. suppliers, developers, system operators, academia, etc.). A standardized approach of WT harmonic model representation is presented in this TR. The harmonic model will find a broad application in many areas of electrical engineering related to design, analysis, and optimisation of electrical infrastructure of onshore as well as offshore WPPs.