Published May 28, 2019 | Version v1
Conference paper Open

Stability of DC Distribution Systems: Analytical and Experimental Results

  • 1. Delft University of Technology
  • 2. Zhejiang University


Constant power loads combined with low inertia form a major challenge for future distribution grids. This paper presents a state-space representation to model dc distribution systems. Two methods are discussed to analyze the (small-signal) stability of these dc distribution systems; an algebraic method and a Brayton-Moser method. The system models and the methods for stability analysis were verified using an experimental dc microgrid set-up. Furthermore, it was found that the instability of dc distribution systems can be classified into two categories: equilibrium instability and oscillatory instability.



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RDC2MT – Research, Demonstration, and Commercialisation of DC Microgrid Technologies 734796
European Commission