Survey-based parameterization of models for EMT simulation
The limitations of conventional models can be determined from the library of simulation tools based on literature, experience or performed investigations (suitability test of a model).
This information forms the basis for determining the need for a survey-based parameterization of models or for a design of operating equipment models that meet the requirements set for the survey.
The first question that should be asked before conducting a study is whether the models available in the simulation tool library are appropriate for the operation under study.
Since inaccuracies are often due to the modeling (not the model used per se, but in the parameterization of the models), it is advisable as a first step to examine to what extent a survey-based parameterization of models can help to increase the accuracy of the models.
Measurement-based parameterization means that the respective simulation model is parameterized with the help of electrical measurements performed on the equipment.
The same measurement technology that is usually used for the diagnosis of equipment is also used to perform such measurements. Also, the types of measurements required for parameterization (e.g. an impedance measurement) are very often identical to those used for diagnostics.
The advantage is that in the case that a measurement of a piece of equipment is not possible, measured values from our diagnostics database (e.g. from equipment of the same type) still allow a realistic assessment of the actual parameters.