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Title: Supercapacitor to Provide Ancillary Services With Control Coordination

Abstract

This paper proposes a dynamic frequency support scheme of a supercapacitor energy storage system (SCESS) in coordination with run-of-the-river-based pumped storage hydropower (PSH) to enhance the short-term frequency stability in a power system that has a high penetration of renewable energy. To achieve this, the proposed coordinated frequency controller (CFC) enables the SCESS and PSH plant to provide the frequency response. The CFC scheme employs a dynamic droop characteristic in parallel with an integral controller and a distribution function. The dynamic droop characteristic determines the power production for frequency regulation employing a variable gain, which varies with the total capacity of the frequency control units and magnitude of the system frequency error with time; the gain increases with the frequency error, and thereby, arresting the frequency nadir at a higher level than in the conventional droop characteristic. In addition, the distribution function dispatches the power from the dynamic droop and integral controller to the control units in proportion to their headrooms; furthermore, the distribution function considers a sudden loss of generation from an SCESS by its operational constraint during the frequency support. Thus, the proposed dynamic frequency support scheme can enhance the short-term frequency stability for a frequency event.

Authors:
 [1];  [2];  [3];  [3];  [4];  [2];  [1]
  1. Auburn University
  2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  3. Idaho National Laboratory
  4. Argonne National Laboratory
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
OSTI Identifier:
1562869
Report Number(s):
NREL/JA-5D00-74859
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article
Journal Name:
IEEE Transactions on Industry Applications
Additional Journal Information:
Journal Volume: 55; Journal Issue: 5
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; adjustable-speed pumped hydropower; ancillary service; frequency response; inertial control; supercapacitor

Citation Formats

Kim, Jinho, Gevorgian, Vahan, Luo, Yusheng, Mohanpurkar, Manish, Koritarov, Vladimir, Hovsapian, ZohRob, and Muljadi, Eduard. Supercapacitor to Provide Ancillary Services With Control Coordination. United States: N. p., 2019. Web. doi:10.1109/TIA.2019.2924859.
Kim, Jinho, Gevorgian, Vahan, Luo, Yusheng, Mohanpurkar, Manish, Koritarov, Vladimir, Hovsapian, ZohRob, & Muljadi, Eduard. Supercapacitor to Provide Ancillary Services With Control Coordination. United States. doi:10.1109/TIA.2019.2924859.
Kim, Jinho, Gevorgian, Vahan, Luo, Yusheng, Mohanpurkar, Manish, Koritarov, Vladimir, Hovsapian, ZohRob, and Muljadi, Eduard. Mon . "Supercapacitor to Provide Ancillary Services With Control Coordination". United States. doi:10.1109/TIA.2019.2924859.
@article{osti_1562869,
title = {Supercapacitor to Provide Ancillary Services With Control Coordination},
author = {Kim, Jinho and Gevorgian, Vahan and Luo, Yusheng and Mohanpurkar, Manish and Koritarov, Vladimir and Hovsapian, ZohRob and Muljadi, Eduard},
abstractNote = {This paper proposes a dynamic frequency support scheme of a supercapacitor energy storage system (SCESS) in coordination with run-of-the-river-based pumped storage hydropower (PSH) to enhance the short-term frequency stability in a power system that has a high penetration of renewable energy. To achieve this, the proposed coordinated frequency controller (CFC) enables the SCESS and PSH plant to provide the frequency response. The CFC scheme employs a dynamic droop characteristic in parallel with an integral controller and a distribution function. The dynamic droop characteristic determines the power production for frequency regulation employing a variable gain, which varies with the total capacity of the frequency control units and magnitude of the system frequency error with time; the gain increases with the frequency error, and thereby, arresting the frequency nadir at a higher level than in the conventional droop characteristic. In addition, the distribution function dispatches the power from the dynamic droop and integral controller to the control units in proportion to their headrooms; furthermore, the distribution function considers a sudden loss of generation from an SCESS by its operational constraint during the frequency support. Thus, the proposed dynamic frequency support scheme can enhance the short-term frequency stability for a frequency event.},
doi = {10.1109/TIA.2019.2924859},
journal = {IEEE Transactions on Industry Applications},
number = 5,
volume = 55,
place = {United States},
year = {2019},
month = {6}
}