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Title: Decentralized secondary frequency restoration and power sharing control in islaned microgrid systems
Authors: Lian, Zhijie
Guo, Fanghong
Wen, Changyun
Keywords: Decentralized Leaky Integral Control
Secondary Frequency Restoration
DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: 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.
Conference: Proceedings of the 2019 31st Chinese Control And Decision Conference
Abstract: 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.
Schools: School of Electrical and Electronic Engineering 
Interdisciplinary Graduate School (IGS) 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 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.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers
ERI@N Conference Papers
IGS Conference Papers

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