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Q-V droop control using fuzzy logic and reciprocal characteristic

Author(s): Lu Wanga*, Yanting Hua, Zhe Chenb
a School of Engineering and Applied Physics, Glyndwr University, Wrexham, LL11 2AW, UK
b Dept. of Energy and Technology, Aalborg University, Aalborg, DK – 9100, Denmark
International Journal of Smart Grid and Clean Energy, vol. 3, no. 1, January 2014: pp. 88-95

ISSN: 2315-4462 (Print)
ISSN: 2373-3594 (Online)
Digital Object Identifier: 10.12720/sgce.3.1.88-95
Abstract: Today, the conventional power system is facing some global environmental problems, which is leading to a new trend of power grid by using “green and clear” energy sources. As the platform of smart grid technology, the microgrid associated with distributed energy resources (DERs) may provide electric power at distributed voltage level, which not only is an autonomous system, but also can be connected to the main grid. To improve the stability and controllability of the power grid, this paper presents an improved Q-V droop control strategy using fuzzy logic controller and reciprocal characteristic. Matlab/Simulink is used for analysing the performance of system. The feasibility of the improved droop control strategy has been verified and discussed. The results demonstrate the improved Q-V droop control strategy could have good effects in grid-connected and islanded mode, and during operation mode transitions.
Keywords: Microgrid, reactive power, voltage, droop control, fuzzy logic, reciprocal characteristic

Full Paper.pdf

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