Passivation of Clustered DC Microgrids with Non-Monotone Loads
<|reference_start|>Passivation of Clustered DC Microgrids with Non-Monotone Loads: In this paper, we consider the problem of voltage stability in DC networks containing uncertain loads with non-monotone incremental impedances and where the steady-state power availability is restricted to a subset of the buses in the network. We propose controllers for powered buses that guarantee voltage regulation and output strictly equilibrium independent passivity (OS-EIP) of the controlled buses, while buses without power are equipped with controllers that dampen their transient behaviour. The OS-EIP of a cluster containing both bus types is verified through a linear matrix inequality (LMI) condition, and the asymptotic stability of the overall microgrid with uncertain, non-monotone loads is ensured by interconnecting the OS-EIP clusters. By further employing singular perturbation theory, we show that the OS-EIP property of the clusters is robust against certain network parameter and topology changes.<|reference_end|>
@article{malan2024passivation,
    title={Passivation of Clustered DC Microgrids with Non-Monotone Loads},
    author={Albertus Johannes Malan, Joel Ferguson, Michele Cucuzzella, Jacquelien
  M. A. Scherpen, S"oren Hohmann},
    journal={arXiv preprint arXiv:2404.19520},
    year={2024},
    archivePrefix={arXiv},
    eprint={2404.19520},
    primaryClass={eess.SY cs.SY}
}