Coordinated control of a hybrid energy storage system for improving the capability of frequency regulation and state-of-charge management

Thien An Nguyen-Huu, Thang Van Nguyen, Kyeon Hur, Jae Woong Shim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The paper proposes a coordinated operation method of two independent storages for managing state-of-charge (SOC) and for providing ancillary service concerning frequency regulation (FR); furthermore, this article also introduces the power allocation scheme between two storages in consideration of the coverage of the frequency band for each storage along with the SOC management scheme of the supercapacitor and battery. We also provide a guideline for the storage sizing on the basis of the smoothing time constant. Additionally, we verify the advantage of the HESS in extending the lifetime of the battery, which is estimated by a real-time state-of-health (SOH) calculation method. The Bode plot of the proposed method is analyzed to observe the power spectrum coverage in the frequency domain through the case studies using PSCAD/EMTDC and MATLAB.

Original languageEnglish
Article number6304
JournalEnergies
Volume13
Issue number23
DOIs
Publication statusPublished - 2020 Dec 1

Bibliographical note

Funding Information:
Funding: This work was supported by the 2019 Inje University research grant. (No. 20190181)

Publisher Copyright:
© 2020 by the authors.

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

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