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The Journal of Engineering

Control and management of hybrid AC/DC microgrid based on Γ-Z-source converter

Content Provider	IET Digital Library
Author	Torkaman, Hossein Afjei, Ebrahim Keyhani, Ali Poursmaeil, Mobina
Abstract	This article studies a hybrid AC/DC microgrid with bidirectional Γ-Z-source inverter as an interlinking converter (IC). The Γ-Z-source inverter is capable of providing high-voltage gainand it does not have the drawbacks of the conventional inverters. In this hybrid microgrid, DC-type energy sources and loads are connected in DC sub-grid and AC-type energy sources and loads are connected in AC sub-grid to reduce the extra power conversion stages in both AC and DC sub-grids. Therefore system volume and cost decreases and system reliability and efficiency increases. In DC sub-grid, the advantages of multi-port power electronic interface (MPEI) are utilised. The individual DC–DC power converter, a MPEI, is used for interconnecting DC distributed generators. Photovoltaic system and battery unit are used as DC distributed generators. The article presents the control of three operation modes including grid-connected mode, islanded mode and islanded mode with power flow management and the IC and distributed generators. For power sharing management, droop strategy is used. The performance of the proposed IC in all three operation modes is evaluated by time domain simulations in MATLAB/Simulink.
Starting Page	2847
Ending Page	2856
Page Count	10
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 14, Jul (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/14
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2018.6365
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-06-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC Subgrid Bidirectional Γ-Z-source Inverter Control of Electric Power System Conventional Inverters Cost Decreases DC-DC Power Converter Distributed Power Generation Distribution Network Extra Power Conversion Stages Grid-connected Mode Hybrid AC/DC Microgrid Hybrid Microgrid Individual DC–DC Power Converter Interconnecting DC Distributed Generator Invertors Load Multiport Converter Multiport Power Electronic Interface Power Converter Power Distribution Control Power Distribution Fault Power Electronics Power Flow Management Power Grid Power Sharing Management Power Supplies to Apparatus System Volume Γ-Z-source Interlinking Converter
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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