Investigation of a decentralised control strategy for grid frequency support from DC microgrids

Florida-James, A and Yana, S and Emhemed, A and Burt, G (2019) Investigation of a decentralised control strategy for grid frequency support from DC microgrids. The Journal of Engineering. (https://doi.org/10.1049/joe.2018.9360)

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Abstract

DC microgrids are capable of integrating and coordinating distributed energy resources into power systems, along with providing services to the wider system e.g. balancing, frequency support, demand response, etc. This paper investigates the capability of DC microgrids providing grid frequency support, for the GB Enhanced Frequency Response service. In this study, photovoltaic generation, energy storage, and load, form the DC microgrids. The control strategy is a decentralised scheme, based on conventional droop control for active power sharing and grid frequency support. Droop control is also used within the DC microgrid for power sharing amongst generation and load. Scenarios are conducted to evaluate the effectiveness of the control strategy and verified by MATLAB/Simulink simulations.

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