Parameter analysis on the harmonic amplification for offshore wind power plants: A case study in the Netherlands

In the design phase of connecting wind power plants (WPPs) to the transmission network, harmonics amplification due to different system parameters (e.g. the long HVAC cable connection) need to be determined. Not all parameters to calculate the harmonic voltage distortion gain are known in detail. The aim of this paper is to analyze the impact of some uncertainties on the harmonic voltage distortion gain by the use of a real case study. Impacts of several aspects, such as network condition (e.g. transmission network contingencies and WPP contingencies), modeling approach (cable modeling) and parameter uncertainties (e.g. cable capacitance), are investigated via simulations. It can be concluded that the transmission network contingencies as well as the Windfarm contingencies have the most significant effect on harmonic amplification. The effect of the export cable modeling is also noticeable while the cable capacitance uncertainties have a less critical effect on harmonic amplification.