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Improved Power Flow Methods for DC Grids

Conference Paper (2020)
Author(s)

Nils H. van der Blij (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Dario Chaifouroosh (Witteveen+Bos)

Claudio A. Canizares (University of Waterloo)

Thiago B. Soeiro (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Laura M. Ramirez Elizondo (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Matthijs T.J. Spaan (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Pavol Bauer (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group
DC systems, Energy conversion & Storage
DOI related publication
https://doi.org/10.1109/ISIE45063.2020.9152570 Final published version
More Info
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Publication Year
2020
Language
English
Research Group
DC systems, Energy conversion & Storage
Bibliographical Note
Virtual/online event due to COVID-19
Article number
9152570
Pages (from-to)
1135-1140
Publisher
IEEE
ISBN (print)
978-1-7281-5636-1
ISBN (electronic)
978-1-7281-5635-4
Event
29th IEEE International Symposium on Industrial Electronics (2020-06-17 - 2020-06-19), Delft, Netherlands
Downloads counter
123

Abstract

This paper presents a steady-state model and associated power flow equations that can be applied to any dc grid. State-of-art power flow methods and two newly proposed methods are discussed and applied to the proposed steady-state model. A standardized IEEE test feeder is used to benchmark the power flow methods with respect to accuracy, convergence and computational efficiency. It is shown that the two new methods have a superior performance compared to the existing techniques for the steady-state analysis of most common dc grids, providing up to a 93 % increase in computational efficiency for the system that was analyzed in this paper. Therefore, it is demonstrated in this paper that these power flow techniques can be used for the operation, planning, optimization, market simulation, and security assessment of practical dc grids.