Theoretical emission study of windpark grids: Emission propagation between windpark and grid

This paper presents the results from a theoretical study on the harmonic emission of a windpark in the frequency range up to 200 kHz. The calculations are based on the transfer function from an individual turbine to the pubic grid, expressed in the frequency domain. The model has been applied to a general windpark, for which a mathematical expression has been derived. The study provides relations between different parameters in the windpark and the transfer functions. An important conclusion from the study is that emission into the public grid is negligible for frequencies above a few kHz.