: Public <<Narrative>> Narrative
Created: 12/07/2018 00:03:03
Modified: 12/07/2018 00:03:03
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Public
  completeDescription
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Notes: This system use case describes the process of validating a combined representative network equivalent in observability area which means it includes network information from both the TSO and the DSO. <br/><br/>When combining two different network models a validation of the combined model has to be carried out in order to guarantee the successful merger of the two models which can, in turn be used for complex and precise planning studies.<br/><br/>The validation is done two-fold. First the Common Observability Area is verified. This Common Observability Area is defined in a way that both the TSO and the DSO represent it in the same manner. Therefore, the overlapping area should be represented by the same network elements and the same connectivity in both the TSO's and the DSO's planning systems. If the areas are not an exact match, the validation is unsuccessful.<br/><br/>Upon successfully validating the Common Observability Area the consistency of the combined network model is verified. This is done with an Iterative Numerical Analysis which are very common in planning applications or systems. For example a load flow analysis or a state estimation analysis uses this kind of approach. In order for the Iterative Numerical Analysis to be successful the nodes have to meet the mismatch tolerance, meaning that combined model converges. If the nodes do not meet the mismatch tolerance the validation process is considered unsuccessful.<br/><br/>If the validation is unsuccessful, the combined model must be further examined in order to find the discrepancies which are then sent to the sender of the change model for reconstruction. <br/><br/>If the validation is successful, a notice of a successful validation is sent to the sender of the change model.<br/>
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  scope
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Notes: The scope of this system use case is the validation of the combined network model of the TSO and the DSO used for long-term planning studies. A successful validation means that common planning simulations such as load-flow, state estimation, etc. can be performed successfully.<br/>
Object Type Connection Direction Notes
«SUC» Network model validation SystemUseCase Dependency From