Droop setting design for multi-terminal HVDC grids considering voltage deviation impacts

Xiaodong Zhao, Kang Li*

*Corresponding author for this work

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In multi-terminal high voltage direct current (HVDC) grids, the widely deployed droop control strategies will cause a non-uniform voltage deviation on the power flow, which is determined by the network topology and droop settings. This voltage deviation results in an inconsistent power flow pattern when the dispatch references are changed, which could be detrimental to the operation and seamless integration of HVDC grids. In this paper, a novel droop setting design method is proposed to address this problem for a more precise power dispatch. The effects of voltage deviations on the power sharing accuracy and transmission loss are analysed. This paper shows that there is a trade-off between minimizing the voltage deviation, ensuring a proper power delivery and reducing the total transmission loss in the droop setting design. The efficacy of the proposed method is confirmed by simulation studies.

Original languageEnglish
Pages (from-to)67-75
Number of pages9
JournalElectric Power Systems Research
Volume123
Early online date18 Feb 2015
DOIs
Publication statusPublished - Jun 2015

Keywords

  • DC grid
  • Droop control
  • HVDC
  • Multi-terminal
  • Transmission loss
  • Voltage source converter (VSC)

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Droop setting design for multi-terminal HVDC grids considering voltage deviation impacts'. Together they form a unique fingerprint.

  • Cite this