An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid

In hybrid microgrid, interlinking converter (ILC) is a key component to connect the AC subgrid and DC subgrid. Its control strategy significantly affect the power flow management, power quality, system efficiency and stability. Traditionally, ILC is usually controlled as a current source, resul...

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Main Authors: Lin, Fanfan, Zhang, Xin, Liao, Huanyue, Hou, Xiaochao
Other Authors: School of Electrical and Electronic Engineering
Format: Conference Paper
Language:English
Published: 2019
Subjects:
Online Access:https://hdl.handle.net/10356/83512
http://hdl.handle.net/10220/50360
http://www.ieee-ecce.org/2019/
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author Lin, Fanfan
Zhang, Xin
Liao, Huanyue
Hou, Xiaochao
author2 School of Electrical and Electronic Engineering
author_facet School of Electrical and Electronic Engineering
Lin, Fanfan
Zhang, Xin
Liao, Huanyue
Hou, Xiaochao
author_sort Lin, Fanfan
collection NTU
description In hybrid microgrid, interlinking converter (ILC) is a key component to connect the AC subgrid and DC subgrid. Its control strategy significantly affect the power flow management, power quality, system efficiency and stability. Traditionally, ILC is usually controlled as a current source, resulting in a poor dynamic stability when a remote weak AC subgird is connected by a large linking impedance. In this study, a quasi-droop control scheme is proposed to control ILC as a current controlled voltage source (CCVS). Not only a flexible power flow management is achieved, but an ancillary function of voltage support is also provided. Moreover, this simple quasidroop control enables ILC to synchronize with the AC subgrid autonomously without a phase-locked loop (PLL). Finally, simulations are presented to verify the system effectiveness.
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spelling ntu-10356/835122021-01-08T02:27:33Z An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid Lin, Fanfan Zhang, Xin Liao, Huanyue Hou, Xiaochao School of Electrical and Electronic Engineering The Eleventh Annual Energy Conversion Congress and Exposition Energy Research Institute @ NTU (ERI@N) Droop Control Frequency Synchronization Engineering::Electrical and electronic engineering In hybrid microgrid, interlinking converter (ILC) is a key component to connect the AC subgrid and DC subgrid. Its control strategy significantly affect the power flow management, power quality, system efficiency and stability. Traditionally, ILC is usually controlled as a current source, resulting in a poor dynamic stability when a remote weak AC subgird is connected by a large linking impedance. In this study, a quasi-droop control scheme is proposed to control ILC as a current controlled voltage source (CCVS). Not only a flexible power flow management is achieved, but an ancillary function of voltage support is also provided. Moreover, this simple quasidroop control enables ILC to synchronize with the AC subgrid autonomously without a phase-locked loop (PLL). Finally, simulations are presented to verify the system effectiveness. Accepted version 2019-11-07T02:48:27Z 2019-12-06T15:24:35Z 2019-11-07T02:48:27Z 2019-12-06T15:24:35Z 2019 Conference Paper Lin, F., Zhang, X., Liao, H., & Hou, X. (2019). An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid. The Eleventh Annual Energy Conversion Congress and Exposition. https://hdl.handle.net/10356/83512 http://hdl.handle.net/10220/50360 http://www.ieee-ecce.org/2019/ 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 Droop Control
Frequency Synchronization
Engineering::Electrical and electronic engineering
Lin, Fanfan
Zhang, Xin
Liao, Huanyue
Hou, Xiaochao
An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid
title An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid
title_full An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid
title_fullStr An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid
title_full_unstemmed An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid
title_short An optimal-oriented quasi-droop control of interlinking converter in hybrid microgrid
title_sort optimal oriented quasi droop control of interlinking converter in hybrid microgrid
topic Droop Control
Frequency Synchronization
Engineering::Electrical and electronic engineering
url https://hdl.handle.net/10356/83512
http://hdl.handle.net/10220/50360
http://www.ieee-ecce.org/2019/
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