On the validation of models of large complex electrical systems

The broad topic of verification and validation (V&V) of simulation model is considered, narrowing the scope to electric network models, using briefly electric traction systems as the working example. Definitions, properties and requirements of the validation process, of the model characteristics and of simulation test methods are considered: the focus is on the background and the methods to address the general problem of model validation with emphasis on the use of experimental measured data and how to characterize them to assess the required metrological quality. Depending on the method approached for model validation, the metrological quality may take the form of uncertainty, consistency and credibility. Bibliography is selected as the most representative for the respective topics of the vast V&V subject and is believed to represent a comprehensive, yet synthetic, reference. This work is intended as a general basis for a more detailed and specific analysis of V&V techniques applied to electric simulation and models