TY - JOUR
T1 - Stability of DC Distribution Systems
T2 - An Algebraic Derivation
AU - van der Blij, Nils H.
AU - Ramirez-Elizondo, Laura M.
AU - Spaan, Matthijs T. J.
AU - Bauer, Pavol
PY - 2017
Y1 - 2017
N2 - 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.
AB - 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.
KW - DC distribution
KW - eigenvalues
KW - sensitivity analysis
KW - stability
KW - state-space
UR - http://resolver.tudelft.nl/uuid:541ca256-235b-45f6-bb91-9dac09c7880d
U2 - 10.3390/en10091412
DO - 10.3390/en10091412
M3 - Article
SN - 1996-1073
VL - 10
SP - 1
EP - 17
JO - Energies
JF - Energies
IS - 9
ER -