Paper Info
Title
Multitier decentralized control scheme using energy storage unit and load management in inverter-based AC microgrids
Abstract
The use of renewable energies, such as wind and solar, is rising in microgrids. However, because of their intermittent nature, achieving a stable system in spite of the uctuations of generation and demand is very difficult. Aiming to increase the stability margin of AC islanded microgrids comprising nondeterministic resources, properly share real power (P), and keep the network frequency (f) at nominal value, this study exploits the presence of energy storage units (ESUs) along with a load-shedding scheme. To this end, this study proposes a multitier decentralized control strategy that is based on frequency and includes three control schemes, distributed generation unit (DGU) control, ESU control, and local loads control (LLC). These controllers operate simultaneously. The DGU controller shares the loads among DGUs in accordance with the frequency droop method. On the other hand, the ESU controller controls the production of ESUs and also the LLCs manage the loads and dump-load of the microgrid. This method ensures the proper operation of AC microgrids that comprise intermittent resources under stand-alone conditions and despite numerous events. The time responses of P and f prove the high performance of the method. The simulations are performed and coded in m-file of MATLAB.
Year
DOI
Venue
2017
10.3906/elk-1506-64
TURKISH JOURNAL OF ELECTRICAL ENGINEERING AND COMPUTER SCIENCES
Keywords
DocType
Volume
Energy storage unit,inverter-based microgrid,load management,multitier control scheme,nondeterministic resource
Journal
25
Issue
ISSN
Citations 
2.0
1300-0632
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Sara Nourollah101.01
Abolfazl Pirayesh201.01
Matthias Fripp310.70