Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids

In this paper, we show that a fully decentralized simple control method can be used to solve the secondary frequency restoration and power allocation problem in AC microgrid (MG) systems. Compared to communication enabled control schemes, this paper makes a breakthrough of realizing frequency restor...

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Main Authors: Lian, Zhijie, Wen, Changyun, Guo, Fanghong, Lin, Pengfeng, Wu, Qiuwei
Other Authors: School of Electrical and Electronic Engineering
Format: Article
Language:English
Published: 2023
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Online Access:https://hdl.handle.net/10356/172148
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1721482023-11-27T02:36:23Z Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids Lian, Zhijie Wen, Changyun Guo, Fanghong Lin, Pengfeng Wu, Qiuwei School of Electrical and Electronic Engineering Energy Research Institute @ NTU (ERI@N) Engineering::Electrical and electronic engineering Secondary Frequency Restoration Decentralized Controller In this paper, we show that a fully decentralized simple control method can be used to solve the secondary frequency restoration and power allocation problem in AC microgrid (MG) systems. Compared to communication enabled control schemes, this paper makes a breakthrough of realizing frequency restoration under a decentralized secondary control by which no data exchanging process happens and thus, MG reliability and robustness can be enhanced. Different from most of existing decentralized control approaches, rigorous theoretical analysis proves that the proposed simple decentralized controller, which is easier for implementation, can still ensure the stability of the overall AC MG system, achieve frequency restoration and accurate optimal power sharing flexibly. In order to illustrate the proposed scheme, real-time tests are carried out in an islanded AC MG system built in the real-time simulator OPAL-RT. The results do show its effectiveness and also verify the established theoretical findings. This work was supported by the Fundamental Research Funds for the Provincial Universities of Zhejiang under Grant RF-A2022001. 2023-11-27T02:36:22Z 2023-11-27T02:36:22Z 2023 Journal Article Lian, Z., Wen, C., Guo, F., Lin, P. & Wu, Q. (2023). Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids. International Journal of Electrical Power and Energy Systems, 148, 108927-. https://dx.doi.org/10.1016/j.ijepes.2022.108927 0142-0615 https://hdl.handle.net/10356/172148 10.1016/j.ijepes.2022.108927 2-s2.0-85146227821 148 108927 en International Journal of Electrical Power and Energy Systems © 2022 Elsevier Ltd. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Electrical and electronic engineering
Secondary Frequency Restoration
Decentralized Controller
spellingShingle Engineering::Electrical and electronic engineering
Secondary Frequency Restoration
Decentralized Controller
Lian, Zhijie
Wen, Changyun
Guo, Fanghong
Lin, Pengfeng
Wu, Qiuwei
Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids
description In this paper, we show that a fully decentralized simple control method can be used to solve the secondary frequency restoration and power allocation problem in AC microgrid (MG) systems. Compared to communication enabled control schemes, this paper makes a breakthrough of realizing frequency restoration under a decentralized secondary control by which no data exchanging process happens and thus, MG reliability and robustness can be enhanced. Different from most of existing decentralized control approaches, rigorous theoretical analysis proves that the proposed simple decentralized controller, which is easier for implementation, can still ensure the stability of the overall AC MG system, achieve frequency restoration and accurate optimal power sharing flexibly. In order to illustrate the proposed scheme, real-time tests are carried out in an islanded AC MG system built in the real-time simulator OPAL-RT. The results do show its effectiveness and also verify the established theoretical findings.
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Lian, Zhijie
Wen, Changyun
Guo, Fanghong
Lin, Pengfeng
Wu, Qiuwei
format Article
author Lian, Zhijie
Wen, Changyun
Guo, Fanghong
Lin, Pengfeng
Wu, Qiuwei
author_sort Lian, Zhijie
title Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids
title_short Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids
title_full Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids
title_fullStr Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids
title_full_unstemmed Decentralized secondary control for frequency restoration and power allocation in islanded AC microgrids
title_sort decentralized secondary control for frequency restoration and power allocation in islanded ac microgrids
publishDate 2023
url https://hdl.handle.net/10356/172148
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