PowerFactory provides different load model classes. Besides the general load model (ElmLod) there are specific models for medium voltage loads (ElmLodmv) and low voltage loads (ElmLodlv). These load models differ in their input parameters as well as some aspects of their behaviour. For detailed descriptions please refer to the technical references.

Since these models do not behave identically, there is no built-in functionality to switch between these different models in PowerFactory. To simplify the conversion between these models, the attached DPL-script “ConvertLoadElements.pfd” can be used. It automatically converts the load elements in the network data and transfers major parameters. Furthermore, the graphical representations in diagrams are converted to the new elements. Its functionality includes the conversion of parameters for balanced AC load flow including setpoints and characteristics. For more information on the structure of the script and its input parameters, see the attached pdf-document.

Please note that the script does not support:

• Unbalanced load flow parameters
• Parameters for calculations other than load flow
• Conversion of model types (TypLod, TypLodmv, TypLodlv)
• Load flow results before and after conversion may differ to a certain extent, since the models do not behave exactly the same, e.g. with regards to voltage or frequency dependency.