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- W4367047382 abstract "To address the challenges that the decarbonization of the energy sector is bringing about, advanced distribution network management and operation strategies are being developed. Many of these strategies require accurate network models to work effectively. However, distribution network data are known to contain errors, and attention has been given to techniques that allow to derive improved network information. This paper presents a novel method to derive line impedance values from smart meter measurement time series, with realistic assumptions in terms of meter accuracy, resolution and penetration. The method is based on unbalanced state estimation and is cast as a non-convex quadratically constrained optimization problem. Both line lengths and impedance matrix models can be estimated based on an exact nonlinear formulation of the steady-state three-phase network physics. The method is evaluated on both the IEEE European Low Voltage Feeder (906 buses) and a real Belgian LV feeder, showing promising results." @default.
- W4367047382 created "2023-04-27" @default.
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- W4367047382 date "2023-09-01" @default.
- W4367047382 modified "2023-09-23" @default.
- W4367047382 title "Combined unbalanced distribution system state and line impedance matrix estimation" @default.
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- W4367047382 doi "https://doi.org/10.1016/j.ijepes.2023.109155" @default.
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