Hybrid AC/DC Microgrid Efficient Power Management in Islanded Mode Using Bidirectional AC-DC Converter by Novel Droop Control Technique

International Journal of Electrical and Electronics Engineering

© 2024 by SSRG - IJEEE Journal

Volume 11 Issue 10

Year of Publication : 2024

Authors : S. Mamatha, G. Mallesham.

10.14445/23488379/IJEEE-V11I10P111

How to Cite?

S. Mamatha, G. Mallesham., "Hybrid AC/DC Microgrid Efficient Power Management in Islanded Mode Using Bidirectional AC-DC Converter by Novel Droop Control Technique," SSRG International Journal of Electrical and Electronics Engineering, vol. 11,  no. 10, pp. 105-113, 2024. Crossref, https://doi.org/10.14445/23488379/IJEEE-V11I10P111

Abstract:

AC microgrids and DC microgrids are more efficient and suitable energy systems that can operate independently or in conjunction with the main electric grid. A hybrid AC/DC microgrid structure combines AC microgrid and DC microgrid, which includes the combined benefits of AC and DC microgrids. These microgrids combine traditional and renewable energy sources to produce electricity from natural resources. Since natural resources fluctuate, the electricity generated by these microgrid sources is unstable. Because of this, sharing the power produced by these AC microgrids and DC microgrids is necessary to maintain distribution system load balance. The AC/DC microgrids, managed by an innovative enhanced PQ technique, are linked by an interlinking converter. Power management in such a grid is important for V&F control in the DC and AC grid. Individual grid control is required to achieve power management in a hybrid AC/DC microgrid and attention to control techniques used for interlinking converters. This study presents an overview of various Interlinking Converter (ILC) operating conditions under various generation and load demand conditions for hybrid AC/DC microgrids. In the proposed system, the DC microgrid is a hybrid system that involves PV, wind farms, and batteries, which are used to meet the demand for a DC load. AC microgrid is a hybrid system consisting of FC, wind farm, and SC to supply the AC load demand. These two grids are interconnected using the ILC, i.e. Voltage Source Converter, to transfer power between these grids according to the load demand on either side of the hybrid AC/DC microgrid. The power management strategy has been validated using MATLAB Simulink with variable load demand conditions.

Keywords:

ILC, FC, SC, Wind farm, PV, Battery.

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