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Power sharing between parallel inverters in microgrid by improved droop control

Lookup NU author(s): Li Lei, Dr Mohammed Elgendy, Dr Neal Wade, Dr Salaheddine Ethni

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Abstract

Microgrid is a main part of the future intelligent and sustainable power system. In order to improve the flexibility of a microgrid and realize the plug and play feature of distributed generation and load, this paper proposed an improved droop control to control the parallel inverters in microgrid to solve the problem that the traditional droop control cannot efficiently allot power between multiple inverters. In the proposed improved droop controller, new components are added to the reference voltage and frequency of each parallel inverter based on a feedback loop of the main bus voltage and frequency, respectively. The proposed control strategy is tested with Matlab/Simulink simulation model of a micro-grid in the islanding mode which is more difficult to achieve power sharing in. Different supply and load variations are investigated in order to show the robustness of the proposed control. Results are compared with the traditional droop control showing superior performance of the proposed control.


Publication metadata

Author(s): Lei Li, Elgendy M, Wade N, Ethni S, Hasanien H

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 53rd International Universities Power Engineering Conference (UPEC)

Year of Conference: 2018

Online publication date: 13/12/2018

Acceptance date: 04/09/2018

Publisher: IEEE

URL: https://doi.org/10.1109/UPEC.2018.8541970

DOI: 10.1109/UPEC.2018.8541970

Library holdings: Search Newcastle University Library for this item

ISBN: 9781538629116


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