A Procedure for Aggregation of Quasi-Static Time-Varying Harmonic Components: A Matlab-Simulink Model

The paper proposes a generic Matlab-Simulink model to represent quasi-static time-varying non-linear loads in power systems. The methodology presented allows to combine both deterministic and a probabilistic approaches. The procedure is able to evaluate voltage and current harmonic spectra under uncertainty scenarios in a power system allowing a preevaluation of harmonic disturbances. The methodology allows to simulate load variability taking into account power consumption and harmonic profile changes in time and to evaluate the introduction of new non-linear loads and renewable sources in a generic electrical power system.