FUZZY LOGIC CONTROLLER BASED AC/DC INTERLINKING CONVERTERS IN ISLANDED HYBRID MICROGRID

Maddala Prem Kumar*, R.S. Srinivas*

Abstract

By minimizing repeated power conversions in individual AC or DC microgrids, hybrid AC-DC micro grids offer highly distributed generation receiving capacity. In a hybrid AC-DC microgrid, the impact of negative sequence components and incorrect frequency transients make it difficult to control grid variables.The AC/DC Hybrid MicroGrid (HMG)'s bidirectional transfer of power via the Interlinking Converter (IC) is the subject of the analysis. As opposed to past attempts made for simply ac or dc microgrids in the main challenge is regulating power flows between all sources situated on the two types of sub-grids. The study that utilized this wider range of control has not received much attention. For it to work properly, converters, dc sources, and ac sources must all operate in synchronism. Converters may switch the flow of electricity from an AC sub-microgrid to a DC sub-microgrid. In a sub-microgrid composed up of Distributed Generators (DGs) with droop controllers, which are essential to the system's stability during islanding, this converter enables load requirements to be met despite a lack of power. According to this work, the small-signal stability of islanded droop-based HMGs is influenced by the power flow direction. A linearized state-space model of an HMG is being developed by it. Increased generation on the dc subgrid enhances the HMG stability margin overall during islanding, based on time-domain simulations conducted in MATLAB/Simulink.

Keywords:

:Interlinking Converter (IC), Hybrid Micro Grid (HMG), Photovoltaic (PV), Wind turbine, Fuzzy controller are some of the keywords.


Full Text:

PDF


References


[1] Babatunde, O.M., J.L. Munda, and Y. Hamam. A thorough analysis of current research on the operation and planning of hybrid green power systems. doi: 10.1109/ACCESS.2020.2988397 IEEE Access 2020 [2]Gong, X., Dong, F., Mohamed, M.A., Abdalla, O.M., and Ali, Z.M. Combining PEM-Fuel Cells and Electric Vehicles: A Secured Energy Management Architecture for Smart Hybrid Microgrids. doi:10.1109/ACCESS.2020.2978789, IEEE Access 2020 [3] Distributed Management of Keys in Microgrids, by Bolgouras, V., Ntantogian, C., Panaousis, E., and Xenakis, C. 2020 IEEE Trans. Industry Inform., 10.1109/TII.2019.2941586 [4]Microgrids: Introduction and Guidelines for Practical Implementations and Operation, Cagnano, A.; De Tuglie, E.; Mancarella, P., 2004. 2020, Appl. Energy, 258-114039. https://doi.org/10.1016/j.apenergy.2019.114039 [5] "Load Frequency Control in Microgrids are Based on a Stochastic Noninteger Controller," IEEE Transactions on Sustainable Energy, vol. 9, no. 2, April 2018, pp. 853-861. M. Khooban, T. Niknam, M. Shasadeghi, T. Dragicevic, and F. Blaabjerg. [6] Yoldas, Y.; Alan, I.; Vasilakos, A.V.; Muyeen, S.M. Microgrids and the Digital Grid: Opportunities and Challenges. Renew. Continue. (2017) Energy Review, 10.1016/j.rser.2017.01.064 [8] "DC microgrid electricity coordination based on fuzzy logic control," 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), Karlsruhe, 2016, pp. 1–10. [9] "Nonlinear load-frequency control: An approach using optimized hierarchical fuzzy systems," 24th Iranian Conference on Electrical Engineering (ICEE), Shiraz, 2016, pp. 311-316. M. E. Baydokhty, H. Zeynal, and A. Zare. [10] "Novel Coordinated Voltage Control for Hybrid Micro-Grid with Islanding Capability," 2015 IEEE Power & Energy Society General Meeting, Denver, CO, pp. 1-1. K. Alobeidli, M. Syed, M. El Moursi, H. Zeineldin, and H. Zeineldin. [11] "Optimal Fuzzy Logic EMS create for residential grid-connected microgrid with hybrid renewable generation and storage," 2015 IEEE 24th International Symposium on Industrial Electronics (ISIE), Buzios, 2015, pp. 742–747. D. Arcos-Aviles, J. Pascual, L. Marroyo, P. Sanchis, F. Guinjoan, and M. P. Marietta. [12] "Fuzzy drooping control loops adjustment for stored energy balance in distributed energy storage system," 9th International Conference on Power Electronics and ECCE Asia (ICPE-ECCE Asia), Seoul, 2015, pp. 728-735. N. L. Dáz, D. Wu, T. Dragievi, J. C. Vásquez, and J. M. Guerrero. "Time-delay effect on load frequency control for microgrids," 2013 10th IEEE INTERNATIONAL CONFERENCE ON NETWORKING, SENSING AND regulation (ICNSC), Evry, 2013, pp. 544-549. [14] "Optimal energy management system for stand-alone wind turbine/photovoltaic/hydrogen/battery hybrid system with supervisory control based on fuzzy logic," International Journal of Hydrogen Energy, vol. 38, no. 33, pp. 14146-14158, 2013. [15] "Multiobjective Intelligent Energies Management for a Microgrid," IEEE Transactions on Industrial Electronics, vol. 60, no. 4, pp. 1688–1699, April 2013, by A. Chaouachi, R. M. Kamel, R. Andoulsi, and K. Nagasaka [16] "Distribution Voltage Control for DC Microgrids Using Fuzzy Control and Gain-Scheduling Technique," IEEE Transactions on Power Electronics, vol. 28, no. 5, may 2013, pp. 2246-2258. R. H. Lasseter, "Microgrids," IEEE Electrical Engineering Society Winter Meeting, vol. 1, 2002, pp. 305–308.

Refbacks

  • There are currently no refbacks.