Sensitivity Analysis of Fault Level Assessments in Hv Networks
نویسندگان
چکیده
In this paper, the effects of the accuracy of HV network parameters on calculated make and break fault levels are investigated. Fault level calculations, using computer models, are an approximation to the behaviour of the actual distribution network and, due to assumed parameter values, include a level of inaccuracy. The results of the fault level sensitivity analysis studies show that the network parameters which have a greater impact on pre-fault voltage levels need to be modelled more accurately. In addition, the fault level sensitivity to general load fault in-feed assumptions given in engineering recommendations is studied. Based on the sensitivity analysis results, recommendations for modelling the HV networks and architecture of a fault level active management system are proposed.
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