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Interdependence of Transmission Branch Parameters on the Voltage Levels

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Title:Interdependence of Transmission Branch Parameters on the Voltage Levels
Authors:Athari, Mir Hadi
Wang, Zhifang
Keywords:Resilient Networks
Interdependence on voltage, synthetic power grid, statistical analysis, transmission network
Date Issued:03 Jan 2018
Abstract:Transformers and transmission lines are critical components of a grid network. This paper analyzes the statistical properties of the electrical parameters of transmission branches and especially examines their interdependence on the voltage levels. Some interesting findings include: (a) with appropriate conversion of MVA rating, a transformer’s per unit reactance exhibits consistent statistical pattern independent of voltage levels and capacity; (b) the distributed reactance (ohms/km) of transmission lines also has some consistent patterns regardless of voltage levels; (c) other parameters such as the branch resistance, the MVA ratings, the transmission line length, etc, manifest strong interdependence on the voltage levels which can be approximated by a power function with different power constants. The results will be useful in both creation of synthetic power grid test cases and validation of existing grid models.
Pages/Duration:9 pages
Rights:Attribution-NonCommercial-NoDerivatives 4.0 International
Appears in Collections: Resilient Networks

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