Economic Dispatch With Distributed Energy Resources: Co-Optimization of Transmission and Distribution Systems

Xinyang Zhou, Chin-Yao Chang, Andrey Bernstein, Changhong Zhao, Lijun Chen

Research output: Contribution to journalArticlepeer-review

7 Scopus Citations

Abstract

The increasing penetration of distributed energy resources (DERs) in the distribution networks has turned the conventionally passive load buses into active buses that can provide grid services for the transmission system. To take advantage of the DERs in the distribution networks, this letter formulates a transmission-and-distribution (TD) systems co-optimization problem that achieves economic dispatch at the transmission level and optimal voltage regulation at the distribution level by leveraging large generators and DERs. A primal-dual gradient algorithm is proposed to solve this optimization problem jointly for TD systems, and a distributed market-based equivalent of the gradient algorithm is used for practical implementation. The results are corroborated by numerical examples with the IEEE 39-Bus system connected with 7 different distribution networks.

Original languageAmerican English
Article number9292973
Pages (from-to)1994-1999
Number of pages6
JournalIEEE Control Systems Letters
Volume5
Issue number6
DOIs
StatePublished - 2021

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

NREL Publication Number

  • NREL/JA-5D00-78619

Keywords

  • distributed control
  • Optimization
  • power systems

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