Parameter tracking techniques applied to harmonic equivalent circuit identification in power systems

The paper deals with the application of different parameter tracking techniques to the online identification of harmonic equivalent circuits in power systems. A description of the methods and a complete discussion of the implementation issues are included. Particular attention is paid to assure good parameter tracking as well as to avoid the estimator wind-up. Numerical applications referred to a simulated case study are presented to compare the different features of the tracking algorithms in response to parameter variations