Hierarchical and Distributed Monitoring of Voltage Stability in Distribution Networks
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Author / Creator
Date
2018-11
Publication Type
Journal Article
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yes
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Abstract
We consider the problem of quantifying and assessing the steady-state voltage stability in radial distribution networks. Our approach to the voltage stability problem is based on a local, approximate, and yet highly accurate characterization of the determinant of the Jacobian of the power flow equations parameterized according to the branch-flow model. The proposed determinant approximation allows us to construct a voltage stability index that can be computed in a fully distributed or in a hierarchical fashion, resulting in a scalable approach to the assessment of steady-state voltage stability. Finally, we provide upper bounds for the approximation error and we numerically validate the quality and the robustness of the proposed approximation with the IEEE 123-bus test feeder.
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published
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Journal / series
IEEE Transactions on Power Systems
Volume
33 (6)
Pages / Article No.
6705 - 6714
Publisher
IEEE
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Methods
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Date collected
Date created
Subject
Voltage stability; Distribution network; Power flow Jacobian; Power flow solvability; Distributed algorithms
Organisational unit
09478 - Dörfler, Florian / Dörfler, Florian
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Funding Info about funding
- Plug-and-Play Control & Optimization in Microgrids ()