Stability and Decentralized Control of Plug-and-Play DC Distribution Grids

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Abstract

Changes in distribution grids pose significant challenges with respect to the control and management of these grids. Stability and decentralized control are vital to ensure the availability and accessibility of plug-and-play dc distribution grids that are (temporarily) without communication. Therefore, this paper presents guidelines for these grids that ensure global stability and a decentralized control strategy that implements these stability guidelines. The stability guidelines are derived using a Brayton-Moser representation of the system to arrive at a Lyapunov candidate function. Furthermore, the decentralized control strategy implements these stability guidelines and ensures that the voltages in the system remain within a specified range. Additionally, several simulations are performed to illustrate the stability of the system and the behavior of the control strategy under different scenarios.

Original languageEnglish
Pages (from-to)63726-63736
Number of pages11
JournalIEEE Access
Volume6
DOIs
Publication statusPublished - 2018

Keywords

  • DC distribution grid
  • Decentralized control
  • decentralised control
  • Guidelines
  • Impedance
  • microgrid
  • plug-and-play
  • Power system stability
  • stability
  • Stability criteria
  • Topology

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