Extended-Optimal-Power-Flow-Based Hierarchical Control for Islanded AC Microgrids

This paper presents the application of a hierarchical control scheme for islanded ac microgrids with a primary droop control and a centralized extended optimal power flow control. The centralized control is responsible for computing and sending, in an online manner, the control references to the pri...

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Published in:IEEE transactions on power electronics 2019-01, Vol.34 (1), p.840-848
Main Authors: Agundis-Tinajero, Gibran, Aldana, Nelson Leonardo Diaz, Luna, Adriana Carolina, Segundo-Ramirez, Juan, Visairo-Cruz, Nancy, Guerrero, Josep M., Vazquez, Juan C.
Format: Article
Language:English
Subjects:
Computer simulation
Distributed generation
Droop characteristics
Electric power grids
Energy resources
Flow control
Frequency control
hierarchical control
Impedance
islanded
Laboratories
microgrid
Microgrids
Optimization
Power efficiency
Power flow
power flow (PF)
Power management
Reactive power
steady-state solution
Voltage control
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cited_by cdi_FETCH-LOGICAL-c336t-4601638774bbeb0b379f4e6a77c3800878b361ad883ed2eb8470d3838fc3d2963
cites cdi_FETCH-LOGICAL-c336t-4601638774bbeb0b379f4e6a77c3800878b361ad883ed2eb8470d3838fc3d2963
container_end_page 848
container_issue 1
container_start_page 840
container_title IEEE transactions on power electronics
container_volume 34
creator Agundis-Tinajero, Gibran
Aldana, Nelson Leonardo Diaz
Luna, Adriana Carolina
Segundo-Ramirez, Juan
Visairo-Cruz, Nancy
Guerrero, Josep M.
Vazquez, Juan C.
description This paper presents the application of a hierarchical control scheme for islanded ac microgrids with a primary droop control and a centralized extended optimal power flow control. The centralized control is responsible for computing and sending, in an online manner, the control references to the primary controls in order to achieve three operational goals, i.e., improvement of the global efficiency, voltage regulation through reactive power management, and compliance of the restrictions regarding the generation unit capacities. Two case studies are defined and online tested in a laboratory-scaled microgrid implemented in the Microgrid Laboratory, Aalborg University. The primary controllers are included in a real-time simulation platform (dSPACE 1006), while the extended optimal power flow is conducted in a central controller by using a smart meter and LabVIEW for data acquisition and MATLAB for its implementation, taking into account load and capacity profiles. The obtained results show the reliability of the proposed scheme in a real system and its advantages over the conventional droop control.
doi_str_mv 10.1109/TPEL.2018.2813980
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1941-0107
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source IEEE Xplore (Online service)
subjects Computer simulation
Distributed generation
Droop characteristics
Electric power grids
Energy resources
Flow control
Frequency control
hierarchical control
Impedance
islanded
Laboratories
microgrid
Microgrids
Optimization
Power efficiency
Power flow
power flow (PF)
Power management
Reactive power
steady-state solution
Voltage control
title Extended-Optimal-Power-Flow-Based Hierarchical Control for Islanded AC Microgrids
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