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Abstract
DC microgrids (MGs), as an alternative option, have attracted increasing interest in recent years due to many potential advantages as compare to the ac system. Stability of these systems can be an important issue under high penetration of load converters which behaves as constant power loads (CPLs), and more especially during interconnection with other MGs, creating dc MG clusters. This paper develops a small signal model for dc MGs from the control point of view, in order to study stability analysis and investigate effects of CPLs and line impedances between the MGs on stability of these systems. This model can be also used to synthesis and study dynamics of control loops in dc MGs and also dc MG clusters. An active stabilization method is proposed to be implemented as a dc active power filter (APF) inside the MGs in order to not only increase damping of dc MGs at the presence of CPLs but also to improve their stability while connecting to the other MGs. Simulation results are provided to evaluate the developed models and demonstrate the effectiveness of proposed active stabilization technique.
Original language | English |
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Title of host publication | Proceedings of the 2014 IEEE International Energy Conference (ENERGYCON) |
Number of pages | 7 |
Publisher | IEEE Press |
Publication date | May 2014 |
Pages | 1284-1290 |
DOIs | |
Publication status | Published - May 2014 |
Event | 2014 IEEE International Energy Conference (ENERGYCON) - Dubrovnik, Croatia Duration: 13 May 2014 → 16 May 2014 |
Conference
Conference | 2014 IEEE International Energy Conference (ENERGYCON) |
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Country/Territory | Croatia |
City | Dubrovnik |
Period | 13/05/2014 → 16/05/2014 |
Series | I E E E International Energy Conference. ENERGYCON proceedings |
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Keywords
- Microgrid (MG)
- DC microgrid clusters
- Constant power load
- Stability analysis
- Small signal model
- Active damping methods
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Dive into the research topics of 'Modeling, Stability Analysis and Active Stabilization of 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