Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems

In this paper, a totally decentralized control scheme is proposed to address the secondary frequency restoration and real power sharing problem in AC microgrid (MG) systems. Different from existing centralized or distributed control approaches, no communication among controllers is required with our...

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Main Authors: Lian, Zhijie, Guo, Fanghong, Wen, Changyun
Other Authors: School of Electrical and Electronic Engineering
Format: Conference Paper
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/83254
http://hdl.handle.net/10220/49485
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author Lian, Zhijie
Guo, Fanghong
Wen, Changyun
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Lian, Zhijie
Guo, Fanghong
Wen, Changyun
author_sort Lian, Zhijie
collection NTU
description In this paper, a totally decentralized control scheme is proposed to address the secondary frequency restoration and real power sharing problem in AC microgrid (MG) systems. Different from existing centralized or distributed control approaches, no communication among controllers is required with our method, which greatly eases the system implementation cost. It is theoretically proved that the designed decentralized leaky integral controllers can restore the frequency to its nominal value with bounded steady-state error, which can be arbitrarily small by choosing proper control parameters. In addition, the proposed controller can also adjust the real power sharing ratio according to different working conditions. An islanded AC MG test system consisting of 4 distributed generators (DGs) is built in MATLAB Simulink environment and the simulation results validate the effectiveness of proposed decentralized control approach.
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spelling ntu-10356/832542021-01-08T02:21:10Z Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems Lian, Zhijie Guo, Fanghong Wen, Changyun School of Electrical and Electronic Engineering Interdisciplinary Graduate School (IGS) Proceedings of the 2019 31st Chinese Control And Decision Conference Energy Research Institute @ NTU (ERI@N) Decentralized Leaky Integral Control Secondary Frequency Restoration DRNTU::Engineering::Electrical and electronic engineering In this paper, a totally decentralized control scheme is proposed to address the secondary frequency restoration and real power sharing problem in AC microgrid (MG) systems. Different from existing centralized or distributed control approaches, no communication among controllers is required with our method, which greatly eases the system implementation cost. It is theoretically proved that the designed decentralized leaky integral controllers can restore the frequency to its nominal value with bounded steady-state error, which can be arbitrarily small by choosing proper control parameters. In addition, the proposed controller can also adjust the real power sharing ratio according to different working conditions. An islanded AC MG test system consisting of 4 distributed generators (DGs) is built in MATLAB Simulink environment and the simulation results validate the effectiveness of proposed decentralized control approach. Accepted version 2019-07-30T03:08:16Z 2019-12-06T15:18:29Z 2019-07-30T03:08:16Z 2019-12-06T15:18:29Z 2019 Conference Paper Lian, Z., Guo, F., & Wen, C. (2019). Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems. Proceedings of the 2019 31st Chinese Control And Decision Conference. https://hdl.handle.net/10356/83254 http://hdl.handle.net/10220/49485 en © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. 6 p. application/pdf
spellingShingle Decentralized Leaky Integral Control
Secondary Frequency Restoration
DRNTU::Engineering::Electrical and electronic engineering
Lian, Zhijie
Guo, Fanghong
Wen, Changyun
Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
title Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
title_full Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
title_fullStr Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
title_full_unstemmed Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
title_short Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
title_sort decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
topic Decentralized Leaky Integral Control
Secondary Frequency Restoration
DRNTU::Engineering::Electrical and electronic engineering
url https://hdl.handle.net/10356/83254
http://hdl.handle.net/10220/49485
work_keys_str_mv AT lianzhijie decentralizedsecondaryfrequencyrestorationandpowersharingcontrolinislanedmicrogridsystems
AT guofanghong decentralizedsecondaryfrequencyrestorationandpowersharingcontrolinislanedmicrogridsystems
AT wenchangyun decentralizedsecondaryfrequencyrestorationandpowersharingcontrolinislanedmicrogridsystems