Power sharing and management in a utility connected DC microgrid

Datta, A.; Ghosh, Arindam; Rajakaruna, Sumedha

doi:10.1109/AUPEC.2017.8282449

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Access Status

Open access

Authors

Datta, A.

Ghosh, Arindam

Rajakaruna, Sumedha

Date

2018

Type

Conference Paper

Metadata

Show full item record

Citation

Datta, A. and Ghosh, A. and Rajakaruna, S. 2018. Power sharing and management in a utility connected DC microgrid, Australasian Universities Power Engineering Conference (AUPEC), pp. 1-6: IEEE.

Source Title

2017 Australasian Universities Power Engineering Conference, AUPEC 2017

Source Conference

Australasian Universities Power Engineering Conference (AUPEC)

DOI

10.1109/AUPEC.2017.8282449

ISBN

9781538626474

School

School of Electrical Engineering, Computing and Mathematical Science (EECMS)

Abstract

© 2017 IEEE. This paper introduces a control technique for proportional load sharing in a DC microgrid during both islanded and utility connected modes. The DC microgrid is connected to a utility system through an interlinking voltage source converter and a unidirectional DC-DC converter. The DC-DC converter draws the desired amount of power from the utility, while the interlinking converter holds the DC bus voltage. The DERs in the DC microgrid are operated under droop sharing using DC-DC converters. Each DC-DC converter is equipped with a state feedback with integral controller that can regulate its output voltage for a wide range of input voltage fluctuation and load variation. Simulation studies are conducted on PSCAD/EMTDC to validate the proposal.