A Novel Voltage Regulation Strategy for Secure Operation of High Renewable Penetrated Distribution Networks with Different R/X and Topologies

Qian Hu, Siqi Bu, Shiwei Xia, Hui Cai

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Based on a newly developed simulation platform, this paper proposes a fully distributed phase-independent voltage regulation strategy. The strategy offers both real and reactive power support options from distributed energy resources (DERs) and accommodates the impact of different R/X of the lines and different topologies of a distribution network. A linear sensitivity analysis is first carried out to explain the essential impact mechanism of R/X on the voltage sensitivity. Then a perturbation approach, as the substitute of conventional Jacobian analysis, is employed for an accurate voltage sensitivity analysis on a three-phase unbalanced nonlinear distribution network model. The impact of R/X on the voltage sensitivity is quantified, which can then be used to indicate which type of power and critical bus can provide the most effective voltage support under the specific R/X in the planning stage of the regulation strategy. It also provides a guidance for DERs droop constant tuning during the operational stage to ensure the effectiveness of the proposed strategy. The voltage regulation includes two stages: the first is consensus stage based on the consensus algorithm to achieve an average voltage deviation without the need of central controllers; the second is droop control stage to proportionally allocate the available P/Q of DERs. The modified IEEE-13 bus distribution network with different R/X and topologies is used for the case study. Results verify that the proposed regulation strategy can effectively deal with the unbalanced voltage problems in the network.

Original languageEnglish
Title of host publication2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3424-3429
Number of pages6
ISBN (Electronic)9781728135205
DOIs
Publication statusPublished - May 2019
Event2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019 - Chengdu, China
Duration: 21 May 201924 May 2019

Publication series

Name2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019

Conference

Conference2019 IEEE PES Innovative Smart Grid Technologies Asia, ISGT 2019
CountryChina
CityChengdu
Period21/05/1924/05/19

Keywords

  • consensus control
  • distributed energy sources
  • distribution network
  • R/X
  • voltage regulation

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Control and Optimization

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