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Abstract
DC microgrids (MGs) have gained research interest during the recent years because of many potential advantages as compared to the ac system. To ensure reliable operation of a low-voltage dc MG as well as its intelligent operation with
the other DC MGs, a hierarchical control is proposed in this paper. In this hierarchy, primary control level is used to regulate the common bus voltage inside each MG locally. A voltage secondary control (VSC) is designed to eliminate the dc bus voltage deviation produced by primary level while guarantees proper operation of tertiary level. This secondary control acts
not only as a central controller for the each MG individually, but also as a decentralized controller when dc MGs are connected together. This way, VSC maintains the dc bus voltage around the voltage reference using an averaging method. This allows the power flow control to be achieved at the same time since it can be accomplished only at the cost of having the voltage deviation
inside the system. Neighboring communication is employed to exchange the voltage output of MGs to the neighbors using low bandwidth communication (LBC) network. Finally, a power flow control (PFC) is proposed to control the tie-line current between the MGs. The effectiveness of the proposed scheme is verified through detailed hardware-in-the-loop (HIL) simulations.
the other DC MGs, a hierarchical control is proposed in this paper. In this hierarchy, primary control level is used to regulate the common bus voltage inside each MG locally. A voltage secondary control (VSC) is designed to eliminate the dc bus voltage deviation produced by primary level while guarantees proper operation of tertiary level. This secondary control acts
not only as a central controller for the each MG individually, but also as a decentralized controller when dc MGs are connected together. This way, VSC maintains the dc bus voltage around the voltage reference using an averaging method. This allows the power flow control to be achieved at the same time since it can be accomplished only at the cost of having the voltage deviation
inside the system. Neighboring communication is employed to exchange the voltage output of MGs to the neighbors using low bandwidth communication (LBC) network. Finally, a power flow control (PFC) is proposed to control the tie-line current between the MGs. The effectiveness of the proposed scheme is verified through detailed hardware-in-the-loop (HIL) simulations.
Original language | English |
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Title of host publication | Proceedings of the 11th International Multi-Conference on Systems, Signals and Devices, SSD 2014 |
Number of pages | 6 |
Publisher | IEEE Press |
Publication date | Feb 2014 |
Pages | 1-6 |
DOIs | |
Publication status | Published - Feb 2014 |
Event | 11th International Multiconference on Systems, Signals & Devices - Castelldefels, Spain Duration: 11 Feb 2014 → 14 Feb 2014 |
Conference
Conference | 11th International Multiconference on Systems, Signals & Devices |
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Country/Territory | Spain |
City | Castelldefels |
Period | 11/02/2014 → 14/02/2014 |
Fingerprint
Dive into the research topics of 'Hierarchical Control for Multiple DC-Microgrids Clusters'. Together they form a unique fingerprint.Projects
- 1 Finished
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Future Residential LVDC Power Distribution Architectures
Vasquez, J. C. & Guerrero, J. M.
01/01/2014 → 31/12/2014
Project: Research
Activities
- 1 Talks and presentations in private or public companies
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IEEE SSD14 Invited Keynote: Research challenges in Microgrid Technologies
Juan Carlos Vasquez (Speaker)
11 Feb 2014Activity: Talks and presentations › Talks and presentations in private or public companies
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