Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics

Under the background of the accelerated transformation of the modern power system, renewable energy will gradually replace the role of traditional energy in the power system. Because of the randomness, uncertainty, and low inertia of renewable energy, the power system frequency security assessment i...

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Main Authors: Yanbo Wang, Junyong Wu
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S235248472300820X
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author Yanbo Wang
Junyong Wu
author_facet Yanbo Wang
Junyong Wu
author_sort Yanbo Wang
collection DOAJ
description Under the background of the accelerated transformation of the modern power system, renewable energy will gradually replace the role of traditional energy in the power system. Because of the randomness, uncertainty, and low inertia of renewable energy, the power system frequency security assessment is becoming a serious issue under the influence of large-scale renewable energy integrations. To achieve the rapid assessment of power system frequency security, a resnet-based frequency security assessment method considering frequency spatiotemporal distribution characteristics is proposed. In this paper, to provide more comprehensive frequency response information, the spatiotemporal characteristics of frequency are introduced and integrated into the input feature set. At the same time, the Resnet network and multi-task-learning framework are applied to construct a frequency security assessment model. Based on the experimental results on the modified IEEE39 bus system, the assessment accuracy is higher than 99%, which shows the excellent assessment performance of the proposed model.
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spelling doaj.art-02c63900e3d544a5a98e4089bc3123022023-12-17T06:38:40ZengElsevierEnergy Reports2352-48472023-10-019125134Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristicsYanbo Wang0Junyong Wu1Corresponding author.; School of electrical engineering, Beijing Jiaotong University, Beijing, 100044, ChinaSchool of electrical engineering, Beijing Jiaotong University, Beijing, 100044, ChinaUnder the background of the accelerated transformation of the modern power system, renewable energy will gradually replace the role of traditional energy in the power system. Because of the randomness, uncertainty, and low inertia of renewable energy, the power system frequency security assessment is becoming a serious issue under the influence of large-scale renewable energy integrations. To achieve the rapid assessment of power system frequency security, a resnet-based frequency security assessment method considering frequency spatiotemporal distribution characteristics is proposed. In this paper, to provide more comprehensive frequency response information, the spatiotemporal characteristics of frequency are introduced and integrated into the input feature set. At the same time, the Resnet network and multi-task-learning framework are applied to construct a frequency security assessment model. Based on the experimental results on the modified IEEE39 bus system, the assessment accuracy is higher than 99%, which shows the excellent assessment performance of the proposed model.http://www.sciencedirect.com/science/article/pii/S235248472300820XDeep learningFrequency securityPower systemMulti-task-learning
spellingShingle Yanbo Wang
Junyong Wu
Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
Energy Reports
Deep learning
Frequency security
Power system
Multi-task-learning
title Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
title_full Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
title_fullStr Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
title_full_unstemmed Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
title_short Resnet-based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
title_sort resnet based power system frequency security assessment considering frequency spatiotemporal distribution characteristics
topic Deep learning
Frequency security
Power system
Multi-task-learning
url http://www.sciencedirect.com/science/article/pii/S235248472300820X
work_keys_str_mv AT yanbowang resnetbasedpowersystemfrequencysecurityassessmentconsideringfrequencyspatiotemporaldistributioncharacteristics
AT junyongwu resnetbasedpowersystemfrequencysecurityassessmentconsideringfrequencyspatiotemporaldistributioncharacteristics