Enabling DER Participation in Frequency Regulation Markets

Priyank Srivastava, Chin-Yao Chang, Jorge Cortes

Research output: Contribution to journalArticlepeer-review

5 Scopus Citations

Abstract

Distributed energy resources (DERs) are playing an increasing role in ancillary services for the bulk grid, particularly in frequency regulation. In this article, we propose a framework for collections of DERs, combined to form microgrids and controlled by aggregators, to participate in frequency regulation markets. Our approach covers both the identification of bids for the market clearing stage and the mechanisms for the real-time allocation of the regulation signal. The proposed framework is hierarchical, consisting of a top layer and a bottom layer. The top layer consists of the aggregators communicating in a distributed fashion to optimally disaggregate the regulation signal requested by the system operator. The bottom layer consists of the DERs inside each microgrid whose power levels are adjusted so that the tie line power matches the output of the corresponding aggregator in the top layer. The coordination at the top layer requires the knowledge of cost functions, ramp rates, and capacity bounds of the aggregators. We develop meaningful abstractions for these quantities respecting the power flow constraints and taking into account the load uncertainties and propose a provably correct distributed algorithm for optimal disaggregation of regulation signals among the microgrids.

Original languageAmerican English
Pages (from-to)2391-2405
Number of pages15
JournalIEEE Transactions on Control Systems Technology
Volume30
Issue number6
DOIs
StatePublished - 1 Nov 2022

Bibliographical note

Publisher Copyright:
© 1993-2012 IEEE.

NREL Publication Number

  • NREL/JA-5D00-82444

Keywords

  • Distributed energy resources (DERs)
  • frequency regulation market
  • microgrid abstractions
  • network optimization

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