: Public <<SUC>> SystemUseCase
Created: 20/08/2018 10:07:33
Modified: 20/09/2018 15:56:18
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This Use-Case aims at improving the location of faults at distribution lines, close to the interface with the transmission network. Concretely, the focus is on distribution lines, owned and operated by the DSO, that are directly connected to transmission bays, owned and operated by the TSO.<br/><br/>In such cases, by having access to information available at the TSO side, collected in transmission bays connecting distribution lines, the DSO will be able to improve the location accuracy of faults on its own distribution lines. This requires additional information to be exchanged in real-time and close real-time between both system operators. <br/><br/>The real-time exchange of data from the TSO to the DSO for fault location purposes is the motivation of this use-case with the ultimate goal of optimizing operations on the DSO side. In close real-time timeframe, the SUC suggests the exchange of a report that is automatically generated with information collected by the protection equipment of the TSO substations like oscillographies for example. <br/>
Element Source Role Target Role
«SUC» Information exchange using a collaborative platform
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«System» Distance Protection
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«System» Data exchange platform
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«System» Substation control
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«Business» Transmission System Operator
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«System» Network Operation
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Object Type Connection Direction Notes
«BUC» Improve system real-time supervision and control through better coordination (TSO and DSO) BusinessUseCase Dependency From  
«Objective» Increase the information exchanged between the TSO-DSO about fault events. Possibility to make history of records of contingencies in TSO-DSO interface Objective Dependency To  
«PreCondition» A communication link for real-time data exchange between TSO and DSO is in place. PreCondition Dependency To  
«Assumption» The physical interface between transmission and distribution networks is at the line bay level, in which the DSO owns the distribution line and the TSO owns the transmission bay connecting (at one end) the distribution line. Assumption Dependency To  
«PreCondition» TSO has installed distance protection devices at transmission bays located at the TSO-DSO interface. PreCondition Dependency To  
«Objective» Improve the accuracy of fault location at distribution lines through enhanced levels of real-time information exchange between TSO and DSO. Objective Dependency To  
«Assumption» TSO has a software to automatically do the fault analysis and protection behaviour report. Assumption Dependency To  
«Versions» Versions1 Versions Dependency To  
«ClassificationInformation» ClassificationInformation1 ClassificationInformation Dependency To  
«PreCondition» TSO records information on fault detection and location at distribution lines located at the TSO-DSO interface. PreCondition Dependency To  
«Narrative» Narrative1 Narrative Dependency To  
«Objective» Reduce the needed time to locate a fault by DSO’s operational teams and, ultimately, minimize downtime of electricity distribution lines, at the border with the transmission network, in case of a fault. Objective Dependency To  
«BUC» Improve fault location close to the TSO-DSO interface BusinessUseCase Dependency From