Stability of DC Distribution Systems: An Algebraic Derivation

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

doi:10.3390/en10091412

Stability of DC Distribution Systems

Title

Stability of DC Distribution Systems: An Algebraic Derivation

Author

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)

Date

2017

Abstract

Instability caused by low inertia and constant power loads is a major challenge of DC distribution grids. Previous research uses oversimplified models or does not provide general rules for stability. Therefore, a comprehensive approach to analyze the stability of DC distribution systems is desired. This paper presents a method to algebraically analyze the stability of any DC distribution system through the eigenvalues of its state-space matrices. Furthermore, using this method, requirements are found for the stability of three example systems. Additionally, a sensitivity analysis is performed, which considers the effect of several system parameters on the stability and disputes some overgeneralized conclusions of previous research. Moreover, various simulations are performed to illustrate the dynamic behavior of a stable and an unstable DC distribution system.

Subject

DC distribution
eigenvalues
sensitivity analysis
stability
state-space

To reference this document use:

http://resolver.tudelft.nl/uuid:541ca256-235b-45f6-bb91-9dac09c7880d

DOI

https://doi.org/10.3390/en10091412

ISSN

1996-1073

Source

Energies, 10 (9), 1-17

Part of collection

Institutional Repository