Line interactive UPS for microgrids
Line interactive UPS for microgrids
Line interactive Uninterruptable Power Supply (UPS) systems are good candidates for providing energy storage within a microgrid to help improve its reliability, economy and efficiency. In grid-connected mode, power can be imported from the grid by the UPS to charge its battery. Power can also be exported when required, e.g., when the tariffs are advantageous. In stand-alone mode, the UPS supplies local distributed loads in parallel with other sources. In this paper, a line interactive UPS and its control system are presented and discussed. Power flow is controlled using the frequency and voltage drooping technique to ensure seamless transfer between grid-connected and stand-alone parallel modes of operation. The drooping coefficients are chosen to limit the energy imported by the USP when re-connecting to the grid and to give good transient response. Experimental results of a microgrid consisting of two 60kW line interactive UPS systems are provided to validate the design.
line interactive ups, distributed generation, microgrid
1292-1300
Abusara, M.A.
15d631fc-71de-4c49-b65e-23e46d2134ee
Guerrero, J.M.
29397923-9151-44e1-b74b-98160dda4099
Sharkh, S.M.
c8445516-dafe-41c2-b7e8-c21e295e56b9
March 2014
Abusara, M.A.
15d631fc-71de-4c49-b65e-23e46d2134ee
Guerrero, J.M.
29397923-9151-44e1-b74b-98160dda4099
Sharkh, S.M.
c8445516-dafe-41c2-b7e8-c21e295e56b9
Abusara, M.A., Guerrero, J.M. and Sharkh, S.M.
(2014)
Line interactive UPS for microgrids.
IEEE Transactions on Industrial Electronics, 61 (3), .
(doi:10.1109/TIE.2013.2262763).
Abstract
Line interactive Uninterruptable Power Supply (UPS) systems are good candidates for providing energy storage within a microgrid to help improve its reliability, economy and efficiency. In grid-connected mode, power can be imported from the grid by the UPS to charge its battery. Power can also be exported when required, e.g., when the tariffs are advantageous. In stand-alone mode, the UPS supplies local distributed loads in parallel with other sources. In this paper, a line interactive UPS and its control system are presented and discussed. Power flow is controlled using the frequency and voltage drooping technique to ensure seamless transfer between grid-connected and stand-alone parallel modes of operation. The drooping coefficients are chosen to limit the energy imported by the USP when re-connecting to the grid and to give good transient response. Experimental results of a microgrid consisting of two 60kW line interactive UPS systems are provided to validate the design.
Text
__soton.ac.uk_ude_PersonalFiles_Users_suleiman_mydocuments_My Work_Publications_MAS_Microgrid IEEE paper_Line_Interactive_UPS_IEEE_TIE_PREPRINT.pdf
- Author's Original
More information
e-pub ahead of print date: 16 May 2013
Published date: March 2014
Keywords:
line interactive ups, distributed generation, microgrid
Organisations:
Mechatronics
Identifiers
Local EPrints ID: 354486
URI: http://eprints.soton.ac.uk/id/eprint/354486
ISSN: 0278-0046
PURE UUID: 401d4db9-bb65-49b0-8965-f6af12e455ef
Catalogue record
Date deposited: 15 Jul 2013 12:56
Last modified: 15 Mar 2024 02:48
Export record
Altmetrics
Contributors
Author:
M.A. Abusara
Author:
J.M. Guerrero
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
