DC microgrid dynamic performance assessment and enhancement based on virtual impedance method

Dong Chen, Lie Xu

Research output: Contribution to conferencePaper

2 Citations (Scopus)
111 Downloads (Pure)

Abstract

A dynamic performance assessment method is proposed for DC microgrids. With the control scheme modeled as virtual impedance, an actively controlled slack converter
terminal of a DC network can be modeled as a circuit branch in S-domain. Using Thevenin's equivalent, transfer functions of a DC microgrid are then deduced. A control scheme is proposed to enhance the dynamics of a DC system with multiple slack terminals. A case study of a multi-terminal DC microgrid is performed to analyze and enhance its dynamics. Time domain simulation and experiments are carried out to validate the proposed analytical and enhancement method.
Original languageEnglish
Number of pages7
Publication statusPublished - 31 Oct 2014
Event40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014) - Dallas, United States
Duration: 29 Oct 20141 Nov 2014

Conference

Conference40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014)
CountryUnited States
CityDallas
Period29/10/141/11/14

Keywords

  • DC microgrid
  • dynamic performance assessment
  • virtual impedance
  • renewable power
  • renewable energy

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  • Cite this

    Chen, D., & Xu, L. (2014). DC microgrid dynamic performance assessment and enhancement based on virtual impedance method. Paper presented at 40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014), Dallas, United States.