Energy storage requirements of dc microgrids with high penetration renewables under droop control
Abstract
Energy storage is a important design component in microgrids with high penetration renewable sources to maintain the system because of the highly variable and sometimes stochastic nature of the sources. Storage devices can be distributed close to the sources and/or at the microgrid bus. In addition, storage requirements can be minimized with a centralized control architecture, but this creates a single point of failure. Distributed droop control enables a completely decentralized architecture but, the energy storage optimization becomes more difficult. Our paper presents an approach to droop control that enables the local and bus storage requirements to be determined. Given a priori knowledge of the design structure of a microgrid and the basic cycles of the renewable sources, we found that the droop settings of the sources are such that they minimize both the bus voltage variations and overall energy storage capacity required in the system. This approach can be used in the design phase of a microgrid with a decentralized control structure to determine appropriate droop settings as well as the sizing of energy storage devices.
- Authors:
-
- Michigan Technological Univ., Houghton, MI (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1123297
- Alternate Identifier(s):
- OSTI ID: 1433585
- Report Number(s):
- SAND-2013-10581J
Journal ID: ISSN 0142-0615; PII: S0142061514007972
- Grant/Contract Number:
- AC04-94AL85000
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- International Journal of Electrical Power and Energy Systems
- Additional Journal Information:
- Journal Volume: 68; Journal Issue: C; Journal ID: ISSN 0142-0615
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 25 ENERGY STORAGE; microgrid; energy storage; optimization; control
Citation Formats
Weaver, Wayne W., Robinett, Rush D., Parker, Gordon G., and Wilson, David G. Energy storage requirements of dc microgrids with high penetration renewables under droop control. United States: N. p., 2015.
Web. doi:10.1016/j.ijepes.2014.12.070.
Weaver, Wayne W., Robinett, Rush D., Parker, Gordon G., & Wilson, David G. Energy storage requirements of dc microgrids with high penetration renewables under droop control. United States. https://doi.org/10.1016/j.ijepes.2014.12.070
Weaver, Wayne W., Robinett, Rush D., Parker, Gordon G., and Wilson, David G. 2015.
"Energy storage requirements of dc microgrids with high penetration renewables under droop control". United States. https://doi.org/10.1016/j.ijepes.2014.12.070. https://www.osti.gov/servlets/purl/1123297.
@article{osti_1123297,
title = {Energy storage requirements of dc microgrids with high penetration renewables under droop control},
author = {Weaver, Wayne W. and Robinett, Rush D. and Parker, Gordon G. and Wilson, David G.},
abstractNote = {Energy storage is a important design component in microgrids with high penetration renewable sources to maintain the system because of the highly variable and sometimes stochastic nature of the sources. Storage devices can be distributed close to the sources and/or at the microgrid bus. In addition, storage requirements can be minimized with a centralized control architecture, but this creates a single point of failure. Distributed droop control enables a completely decentralized architecture but, the energy storage optimization becomes more difficult. Our paper presents an approach to droop control that enables the local and bus storage requirements to be determined. Given a priori knowledge of the design structure of a microgrid and the basic cycles of the renewable sources, we found that the droop settings of the sources are such that they minimize both the bus voltage variations and overall energy storage capacity required in the system. This approach can be used in the design phase of a microgrid with a decentralized control structure to determine appropriate droop settings as well as the sizing of energy storage devices.},
doi = {10.1016/j.ijepes.2014.12.070},
url = {https://www.osti.gov/biblio/1123297},
journal = {International Journal of Electrical Power and Energy Systems},
issn = {0142-0615},
number = C,
volume = 68,
place = {United States},
year = {Fri Jan 09 00:00:00 EST 2015},
month = {Fri Jan 09 00:00:00 EST 2015}
}
Web of Science
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Works referencing / citing this record:
Droop Control in DQ Coordinates for Fixed Frequency Inverter-Based AC Microgrids
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