Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
A Hierarchical Control of Supercapacitor and Microsources in Islanded DC Microgrids
Download
index.pdf
Date
2023-1-01
Author
Barati, Farhad
Ahmadi, Behzad
Keysan, Ozan
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
131
views
36
downloads
Cite This
This paper proposes a hierarchical control approach for SuperCapacitor (SC) energy storage and microsources in islanded DC microgrids. It takes into account microsources' dynamic and steady-state limitations. The proposed approach relies on an architecture presented for the SC's and microsources' interfaces with the DC bus. In the proposed architecture, DC microsources interface with the DC bus through buck converters. Moreover, the SC interfaces with the DC bus through the bi-directional buck converter. The instantaneous loads currents are measured and employed in the secondary control to calculate the reference currents for buck converters. In the primary control, we run buck converters as current sources. Moreover, the bi-directional buck converter is run to regulate the DC bus voltage. The proposed approach is generic; meaning that it can be employed for any islanded DC microgrid. Without loss of generality, to prove its effectiveness, we utilized it for a Low Voltage DC (LVDC) microgrid in this paper. Analysis, design, simulations, and experimental verifications are presented for the LVDC microgrid. The experimental results confirm that, by employing the proposed approach, the DC bus voltage deviations from its reference voltage is 5% and it restores in less than 1 sec .
Subject Keywords
Islanded DC microgrids
,
hierarchical control
,
SC energy storage
,
microsources' dynamic and steady-state limitations
,
ENERGY-STORAGE
,
POWER MANAGEMENT
,
SYSTEM
,
WIND
,
STRATEGY
,
PV
URI
https://hdl.handle.net/11511/102510
Journal
IEEE ACCESS
DOI
https://doi.org/10.1109/access.2023.3237684
Collections
Department of Electrical and Electronics Engineering, Article
Suggestions
OpenMETU
Core
A Control Method to Enhance Dynamic Performance of Parallel Inverters in Islanded Microgrid
Kohansal, M.; Moghani, J. S.; Abdi, B.; Gharehpetian, G. B. (2011-09-10)
A new method for the power sharing in parallel inverters is proposed in this paper. The power calculation unit of the conventional droop is improved to obtain fast transient response. The reduction of the circulating current between inverters during system dynamics is one of the advantages of this method. Also, the proposed control method has a good dynamic performance and power sharing. The simulation results are presented to prove the validity and the improvements achieved by the proposed controller.
A Self-Adapting Synchronized-Switch Interface Circuit for Piezoelectric Energy Harvesters
Chamanian, Salar; Muhtaroglu, Ali; Külah, Haluk (Institute of Electrical and Electronics Engineers (IEEE), 2020-01-01)
This paper presents a self-adapting synchronized-switch harvesting (SA-SSH) interface circuit to extract energy from vibration-based piezoelectric energy harvesters (PEHs). The implemented circuit utilizes a novel switching technique to recycle optimum amount of harvested charge on piezoelectric capacitance to strengthen the damping force, and simultaneously achieve load-independent energy extraction with a single inductor. Charge recycling is realized by adjusting extraction time, and optimized through a m...
A Complete Analysis and a Novel Solution for Instability in Pump Controlled Asymmetric Actuators
Çalışkan, Hakan; Balkan, Raif Tuna (ASME International, 2015-9-1)
<jats:p>This paper addresses the stability problem of pump controlled asymmetric hydraulic actuators and proposes a physical solution for it. The system under consideration utilizes a shuttle valve to compensate for unequal flow rates due to the asymmetry in the actuator. Possible hydraulic circuit configurations resulting from various valve positions are defined on the load pressure versus velocity plane and a generalized linear model of the system is derived. The investigation shows that there exists a cr...
A conic quadratic formulation for a class of convex congestion functions in network flow problems
Gürel, Sinan (Elsevier BV, 2011-06-01)
In this paper we consider a multicommodity network flow problem with flow routing and discrete capacity expansion decisions. The problem involves trading off congestion and capacity assignment (or expansion) costs. In particular, we consider congestion costs involving convex, increasing power functions of flows on the arcs. We first observe that under certain conditions the congestion cost can be formulated as a convex function of the capacity level and the flow. Then, we show that the problem can be effici...
A variational multiscale constitutive model for nanocrystalline materials
Gürses, Ercan (Elsevier BV, 2011-03-01)
This paper presents a variational multi-scale constitutive model in the finite deformation regime capable of capturing the mechanical behavior of nanocrystalline (nc) fcc metals. The nc-material is modeled as a two-phase material consisting of a grain interior phase and a grain boundary effected zone (GBAZ). A rate-independent isotropic porous plasticity model is employed to describe the GBAZ, whereas a crystal-plasticity model which accounts for the transition from partial dislocation to full dislocation m...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
F. Barati, B. Ahmadi, and O. Keysan, “A Hierarchical Control of Supercapacitor and Microsources in Islanded DC Microgrids,”
IEEE ACCESS
, vol. 11, pp. 7056–7066, 2023, Accessed: 00, 2023. [Online]. Available: https://hdl.handle.net/11511/102510.