Optimizing system operation with nadir considerations via simulations of detailed system dynamic responses
File(s)
Author(s)
Type
Journal Article
Abstract
Decarbonization processes around the world are pressing system operation significantly, particularly in terms of ensuring appropriate reliability and stability levels when integrating massive amounts of converter-based generation technologies (CGTs). In this context, this work proposes an optimization-simulation model to optimize system operation with nadir considerations via simulation of detailed system dynamic responses. We propose a Gauss–Seidel iterative method to incorporate the precise governors’ dynamic responses determined by the simulations within the sequential optimization problems. Through several case studies, we demonstrate the benefits of our approach and analyze the impacts of incorporating a detailed representation of units’ dynamic responses. We also compare our frequency nadir-constrained approach against an alternative inertia-constrained approach that ensures minimum amounts of inertia levels. Particularly, we show that ensuring minimum amounts of inertia may lead to inefficient economic outputs in terms of costs and integration of renewable generation without security gains in terms of frequency stability compared with constraining frequency nadir.
Date Issued
2022-11-01
Date Acceptance
2022-07-02
Citation
Electric Power Systems Research, 2022, 212
ISSN
0378-7796
Publisher
Elsevier
Journal / Book Title
Electric Power Systems Research
Volume
212
Copyright Statement
Copyright © Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Engineering, Electrical & Electronic
Governor ramp rate
Power imbalance
PRIMARY FREQUENCY CONTROL
Primary frequency response
SECURITY
SERVICES
Stability assessment
System inertia
Publication Status
Published
Article Number
108533
Date Publish Online
2022-07-19