Flexible Synthetic Inertia Optimization in Modern Power Systems

Increasing the replacement of conventional synchronous machines by non-synchronous renewable machines reduces the conventional synchronous generator (SG) inertia in the modern network. Synthetic inertia (SI) control topologies to provide frequency support are becoming a new frequency control tactic...

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Main Authors: Peter Makolo, Ramon Zamora, Uvini Perera, Tek Tjing Lie
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Inventions
Subjects:
Online Access:https://www.mdpi.com/2411-5134/9/1/18
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author Peter Makolo
Ramon Zamora
Uvini Perera
Tek Tjing Lie
author_facet Peter Makolo
Ramon Zamora
Uvini Perera
Tek Tjing Lie
author_sort Peter Makolo
collection DOAJ
description Increasing the replacement of conventional synchronous machines by non-synchronous renewable machines reduces the conventional synchronous generator (SG) inertia in the modern network. Synthetic inertia (SI) control topologies to provide frequency support are becoming a new frequency control tactic in new networks. However, the participation of SI in the market of RES-rich networks to provide instant frequency support when required proposes an increase in the overall marginal operation cost of contemporary networks. Consequently, depreciation of operation costs by optimizing the required SI in the network is inevitable. Therefore, this paper proposes a flexible SI optimization method. The algorithm developed in the proposed method minimizes the operation cost of the network by giving flexible SI at a given SG inertia and different sizes of contingency events. The proposed method uses Box’s evolutionary optimizer with a self-tuning capability of the SI control parameters. The proposed method is validated using the modified New England 39-bus network. The results show that provided SIs support the available SG inertia to reduce the RoCoF values and maintain them within acceptable limits to increase the network’s resilience.
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spelling doaj.art-63f11adaf21a4e1c8b3a072047c04f682024-02-23T15:21:40ZengMDPI AGInventions2411-51342024-01-01911810.3390/inventions9010018Flexible Synthetic Inertia Optimization in Modern Power SystemsPeter Makolo0Ramon Zamora1Uvini Perera2Tek Tjing Lie3Department of Electrical and Electronic Engineering, Auckland University of Technology (AUT), Auckland 1010, New ZealandDepartment of Electrical and Electronic Engineering, Auckland University of Technology (AUT), Auckland 1010, New ZealandDepartment of Electrical and Electronic Engineering, Auckland University of Technology (AUT), Auckland 1010, New ZealandDepartment of Electrical and Electronic Engineering, Auckland University of Technology (AUT), Auckland 1010, New ZealandIncreasing the replacement of conventional synchronous machines by non-synchronous renewable machines reduces the conventional synchronous generator (SG) inertia in the modern network. Synthetic inertia (SI) control topologies to provide frequency support are becoming a new frequency control tactic in new networks. However, the participation of SI in the market of RES-rich networks to provide instant frequency support when required proposes an increase in the overall marginal operation cost of contemporary networks. Consequently, depreciation of operation costs by optimizing the required SI in the network is inevitable. Therefore, this paper proposes a flexible SI optimization method. The algorithm developed in the proposed method minimizes the operation cost of the network by giving flexible SI at a given SG inertia and different sizes of contingency events. The proposed method uses Box’s evolutionary optimizer with a self-tuning capability of the SI control parameters. The proposed method is validated using the modified New England 39-bus network. The results show that provided SIs support the available SG inertia to reduce the RoCoF values and maintain them within acceptable limits to increase the network’s resilience.https://www.mdpi.com/2411-5134/9/1/18synthetic inertiafrequency responseRoCoFcontingency eventflexible inertia
spellingShingle Peter Makolo
Ramon Zamora
Uvini Perera
Tek Tjing Lie
Flexible Synthetic Inertia Optimization in Modern Power Systems
Inventions
synthetic inertia
frequency response
RoCoF
contingency event
flexible inertia
title Flexible Synthetic Inertia Optimization in Modern Power Systems
title_full Flexible Synthetic Inertia Optimization in Modern Power Systems
title_fullStr Flexible Synthetic Inertia Optimization in Modern Power Systems
title_full_unstemmed Flexible Synthetic Inertia Optimization in Modern Power Systems
title_short Flexible Synthetic Inertia Optimization in Modern Power Systems
title_sort flexible synthetic inertia optimization in modern power systems
topic synthetic inertia
frequency response
RoCoF
contingency event
flexible inertia
url https://www.mdpi.com/2411-5134/9/1/18
work_keys_str_mv AT petermakolo flexiblesyntheticinertiaoptimizationinmodernpowersystems
AT ramonzamora flexiblesyntheticinertiaoptimizationinmodernpowersystems
AT uviniperera flexiblesyntheticinertiaoptimizationinmodernpowersystems
AT tektjinglie flexiblesyntheticinertiaoptimizationinmodernpowersystems