Probabilistic iterative harmonic analysis of power systems

The most adequate way to take into account the uncertainties which affect the modelling of harmonic penetration is to express the input data by random variables and to apply probabilistic techniques of analysis. In this paper a probabilistic method is proposed for assessing harmonic distortion levels in power systems. This method transfers to the field of probabilistics a deterministic iterative procedure which is extremely useful for analysing multiconvertor systems. The proposed method, called the `probabilistic iterative harmonic method´, employs a Monte Carlo simulation technique. A numerical application to a test system is also discussed