A State-Space Approach to Modelling DC Distribution Systems

A State-Space Approach to Modelling DC Distribution Systems

van der Blij, N.H. (TU Delft DC systems, Energy conversion & Storage)
Ramirez Elizondo, L.M. (TU Delft DC systems, Energy conversion & Storage)
Spaan, M.T.J. (TU Delft Algorithmics)
Bauer, P. (TU Delft DC systems, Energy conversion & Storage)

2018

Many modelling methods for the analysis of dc distribution grids only consider monopolar configurations and do not allow for mutual couplings to be taken into account. The modelling method presented in this paper aims to deal with both of these issues. A state-space approach was chosen for its flexibility and computational speed. The derived approach can be applied to any dc distribution system regardless of its configuration and takes into account mutual couplings between phase conductors. Moreover, the state-space matrices can be derived in a programmatic manner. The derived model was verified empirically and by a reference model created in Simulink using PowerLib blocks. Subsequently, an illustrative system was analyzed, which showed the utility of the presented method in analyzing the dynamics of dc distribution systems. The presented method could especially be useful for the analysis, design and optimization of, for example, the stability and control systems of dc distribution systems.

Analytical models
Computational modeling
Conductors
Mathematical model
Mutual coupling
Transient analysis
dc distribution
distribution line
dynamic analysis
microgrid
modelling
state-space

http://resolver.tudelft.nl/uuid:fe39396f-feb5-4198-a3fc-1a634fe67c10

https://doi.org/10.1109/TPWRS.2017.2691547

0885-8950

IEEE Transactions on Power Systems, 33 (1), 943-950

Accepted Author Manuscript

Institutional Repository

journal article

© 2018 N.H. van der Blij, L.M. Ramirez Elizondo, M.T.J. Spaan, P. Bauer