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Currently the structure of energy generation in industrialized countries is fundamentally changing. Among others this is due to the climate change as well as the incidents in Fukushima in March 2011 and the associated decommissioning of nuclear power plants in Germany until 2022. The resulting system of especially volatile generators requires a reliable grid operation (possibly at the limit of the...
The knowledge of DC time constants in fault currents at system nodes is important to design the protection system and validate the calculation models for power system simulations. In this paper, we present methods to estimate Thévenin's impedance and DC time constants in fault currents with application to disturbance records. Additionally, a comparison between both parameters is shown. We demonstrate...
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