Modeling uncertainties in the harmonic distortion calculation in power systems, due to wind farms

This article presents and develops main aspects to be considered when harmonics have to be modeled in a power system including wind farms in its generator fleet. In particular, uncertainty involved in the analysis, because the wind speed variations, is considered and included in a more complete methodology, that is capable to compute the possibility distributions of the harmonic voltage distortion at all buses of the power system. Such a methodology, developed by the authors, is the possibilistic harmonic load-flow. Simulations to test the proposal are developed in the IEEE 14-bus standard test system for harmonic analysis, but replacing the generator at bus two, with a wind farm.