Integrating Transactive Energy into Reliability Evaluation for a Self-Healing Distribution System with Microgrid

Jiaojiao Dong, Lin Zhu, Qihuan Dong, Paychuda Kritprajun, Yunting Liu, Yilu Liu, Leon M. Tolbert, Joshua C. Hambrick, Yaosuo Sonny Xue, T. Ben Ollis, Bishnu P. Bhattarai, Kevin P. Schneider, Stuart Laval

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Non-utility owned distributed energy resources (DERs) are mostly untapped currently, but they can provide many grid services such as voltage regulation and service restoration, if properly controlled, and can improve the distribution system's reliability when coordinated with utility-owned assets such as self-healing control and microgrids. This paper integrates transactive energy control into the distribution system reliability evaluation to quantitatively assess the impact of non-utility owned DERs on reliability improvement. A transactive reactive power control strategy is designed to incentivize the DERs to provide reactive power support for improving voltage profiles thus enabling additional customer load restoration during an outage. Also, an operational sequence to coordinate the non-utility owned DERs with the utility owned self-healing control and utility owned microgrids is designed and integrated into the service restoration process with the operational constraints guaranteed by checking the three-phase unbalanced power flow for post-fault network reconfiguration. The reliability indices are then calculated through a Monte Carlo simulation. The transactive reactive power control strategy is tested on a four-feeder distribution system operated by Duke Energy in the U.S. Results demonstrate that the non-utility owned DERs with the transactive control improve the reliability of both the system and critical loads by more than 30%.

Original languageEnglish
Pages (from-to)122-134
Number of pages13
JournalIEEE Transactions on Sustainable Energy
Volume13
Issue number1
DOIs
StatePublished - Jan 1 2022

Funding

This work was supported in part by the U.S. Department of Energy Grid Modernization Lab Consortium, by Engineering Research Center shared facilities supported by the Engineering Research Center Program of theNational Science Foundation and the Department of Energy under NSF Award EEC-1041877, and by the CURENT Industry Partnership Program.

Keywords

  • Microgrids
  • power distribution
  • power system economics
  • power system reliability
  • power system restoration
  • transactive energy

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