Investigation of distributed cooperative control for DC microgrids in different communication medium

Sahoo, Subham, Zhang, Chenghua, Pullaguram, Deepak Reddy, Mishra, Sukumar, Wu, Jianzhong ORCID: https://orcid.org/0000-0001-7928-3602 and Senroy, Nilanjan 2017. Investigation of distributed cooperative control for DC microgrids in different communication medium. Energy Procedia 142 , pp. 2218-2223. 10.1016/j.egypro.2017.12.592

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Abstract

This paper is based on a detailed study of cooperative secondary control strategy for accurate load sharing in DC microgrids in different communication medium. Since accuracy in DC voltage regulation and load sharing can’t be achieved simultaneously in a non-negligible impedance network, an adaptive droop has been proposed to address this issue to a significant extent via a secondary controller. A fixed primary droop controller along with a conventional secondary controller generally introduces a loading mismatch between converters while accomplishing voltage regulation at load bus. To combat this issue, an adaptive droop is proposed to improve power sharing along with a tertiary update used for fine-tuning. Since a distributed controller collect information from its neighbors, its performance is highly influenced by the communication medium and its characteristics, such as latency, failure rate, etc. Hence, the efficacy of the proposed distributed communication architecture is tested in OPNET environment to conclude communication factors. These results are used to validate the performance of the proposed control strategy in MATLAB/SIMULINK environment for various communication as well as converter adversities.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Engineering
Publisher:	Elsevier
ISSN:	1876-6102
Last Modified:	25 Oct 2022 13:48
URI:	https://orca.cardiff.ac.uk/id/eprint/120790

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