Hybrid Energy System for Smart DC Microgrid Using Optimized PI-Based CUK Integrated Boost DC-DC Converter

International Journal of Electrical and Electronics Engineering
© 2023 by SSRG - IJEEE Journal
Volume 10 Issue 1
Year of Publication : 2023
Authors : Yannam Ravi Sankar, K. Chandra Sekhar
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Yannam Ravi Sankar, K. Chandra Sekhar, "Hybrid Energy System for Smart DC Microgrid Using Optimized PI-Based CUK Integrated Boost DC-DC Converter," SSRG International Journal of Electrical and Electronics Engineering, vol. 10,  no. 1, pp. 1-14, 2023. Crossref, https://doi.org/10.14445/23488379/IJEEE-V10I1P101

Abstract:

In this research work, an efficient DC microgrid is designed with a combination of a fuel cell, a PV system and a battery to improve the system voltage stability. For the purpose of raising the low DC output voltage of the PV system, a Cuk integrated converter is used, and a crew search optimized Proportional Integral (PI) controller is used to regulate a converter's operations to produce a regulated output. Fuel's low DC output voltage is increased by implementing a boost converter, and a PI controller regulates the functioning of the converter to produce a regulated output. Since the output of solar PV systems and fuel cells is influenced by the availability of sunlight and hydrogen, a suitable storage battery is necessary to store the excess electricity generated. The Lithium-ion (Li-ion) battery acts as a power reserve, maintains energy balance, and enhances the power supply reliability of hybrid energy systems. The bidirectional converter, which connects the battery to the Microgrids, has the ability to transfer power in both directions and supports both buck and boost operational parameters. Bidirectional converter is operated under the control of an artificial neural network (ANN). The findings are generated by verifying the suggested method using MATLAB simulation.

Keywords:

Cuk integrated boost converter, ANN, CSA, Lithium-ion battery, PI controller, Bidirectional converter, DC microgrid, PV system, Fuel cell.

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