NONE 20260513103535930 wseas/wseas content-registration-form+ja@crossref.org content-registration-form WSEAS TRANSACTIONS ON SYSTEMS AND CONTROL 1991-8763 2224-2856 Kottala Padma Department of Electrical Engineering, Andhra University College of Engineering, Visakhapatnam, Andhra Pradesh, INDIA M. Manogna Department of Electrical Engineering, Andhra University College of Engineering, Visakhapatnam, Andhra Pradesh, INDIA B. Amarendra Reddy Department of Electrical Engineering, Andhra University College of Engineering, Visakhapatnam, Andhra Pradesh, INDIA Many power electronic applications, such as locomotives and Hybrid Electric Vehicles (HEVs), are moving towards a Multi-Input Multi-Output (MIMO) integrated DC-DC converter for its reliability and flexibility. This work proposes a Three-Input Integrated Bidirectional DC-DC (TIIBD) Converter to combine a Photovoltaic (PV) panel, Fuel Cell (FC) stack, and battery for grid-connected Hybrid Energy Microgrids (HEMs), enabling bidirectional power flow and energy storage. The TIIBD converter is modeled using state-space analysis, yielding a Transfer Function Matrix (TFM). PV and FC are optimized for maximum power via the P&O MPPT algorithm and CRCBP-based PI control. A 3-level Neutral Point Clamped (NPC) Inverter is used for power management between the grid and the TIIBD converter. The controllers for the three inputs are designed, and the steady-state performance of the converter with an AC load of 10KW for Microgrid (MG) application in different operating conditions is analysed and verified in MATLAB/Simulink platform. 05 13 2026 05 13 2026 52 6 https://creativecommons.org/licenses/by/4.0/deed.en_US 10.37394/23203.2026.21.6 https://wseas.com/journals/sac/2026/a125103-004(2026).pdf X. L. Li, Z. Dong, C. K. Tse, and D. D. -C. Lu, "Single-Inductor Multi-Input MultiOutput DC–DC Converter with High Flexibility and Simple Control," in IEEE Transactions on Power Electronics, vol. 35, no. 12, pp. 13104-13114, Dec. 2020. 10.1109/ISCAS45731.2020.9180788 A. Gupta, R. Ayyanar, and S. Chakraborty, "Novel Electric Vehicle Traction Architecture With 48 V Battery and Multi-Input, High Conversion Ratio Converter for High and Variable DC-Link Voltage," in IEEE Open Journal of Vehicular Technology, vol. 2, pp. 448-470, 2021. https://doi.org/10.1109/OJVT.2021.3132281 B. R. Ravada, N. R. Tummuru, and B. N. L. Ande, "Photovoltaic-Wind and Hybrid Energy Storage Integrated Multi-Source Converter Configuration for DC Microgrid Applications," in IEEE Transactions on Sustainable Energy, vol. 12, no. 1, pp. 83-91, Jan. 2021. https://doi.org/10.1109/TSTE.2020.2983985 E. Amiri, R. R. Khorasani, E. Adib, and A. Khoshkbar-Sadigh, "Multi-Input High StepUp DC–DC Converter with Independent Control of Voltage and Power for Hybrid Renewable Energy Systems," in IEEE Transactions on Industrial Electronics, vol. 68, no. 12, pp. 12079-12087, Dec. 2021, https://doi.org/10.1109/TIE.2020.3047038. Narayanaswamy, J.; Mandava, S. NonIsolated Multiport Converter for Renewable Energy Sources: A Comprehensive Review. Energies 2023, 16, 1834. https://doi.org/10.3390/en16041834 Soldado-Guamán, J.; Herrera-Perez, V.; Pacheco-Cunduri, M.; Paredes-Camacho, A.; Delgado-Prieto, M.; Hernandez-Ambato, J. Multiple Input-Single Output DC-DC Converters Assessment for Low Power Renewable Sources Integration. Energies 2023, 16, 1652. https://doi.org/10.3390/en16041652 Yuan-Chuan Liu and Yaow-Ming Chen, “A Systematic Approach to Synthesizing MultiInput DC–DC Converters,” IEEE Transactions on Power Electronics, vol. 24, no. 1, January 2009, pp. 116-127. 10.1109/TPEL.2008.2009170 Akar, Y. Tavlasoglu, E. Ugur, B. Vural, and I. Aksoy, "A Bidirectional Nonisolated MultiInput DC–DC Converter for Hybrid Energy Storage Systems in Electric Vehicles," in IEEE Transactions on Vehicular Technology, vol. 65, no. 10, pp. 7944-7955, Oct. 2016, https://doi.org/10.1109/TVT.2015.2500683. H. Tao, A. Kotsopoulos, J. L. Duarte, and M. A. M. Hendrix, "Multi-input bidirectional DC-DC converter combining DC-link and magnetic-coupling for fuel cell systems," Fortieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005., Hong Kong, China, 2005, pp. 2021-2028 Vol. 3 https://doi.org/10.1109/IAS.2005.1518725. S. Dusmez, A. Hasanzadeh, and A. Khaligh, "Comparative Analysis of Bidirectional Three-Level DC–DC Converter for Automotive Applications," in IEEE Transactions on Industrial Electronics, vol. 62, no. 5, pp. 3305-3315, May 2015, https://doi.org/10.1109/TIE.2014.2336605. Akar, Y. Tavlasoglu, E. Ugur, B. Vural, and I. Aksoy, "A Bidirectional Nonisolated Multi-Input DC–DC Converter for Hybrid Energy Storage Systems in Electric Vehicles," in IEEE Transactions on Vehicular Technology, vol. 65, no. 10, pp. 7944-7955, Oct. 2016, https://doi.org/10.1109/TVT.2015.2500683. R. R. Ahrabi, H. Ardi, M. Elmi, and A. Ajami, "A Novel Step-Up Multi-Input DC– DC Converter for Hybrid Electric Vehicles Application," in IEEE Transactions on Power Electronics, vol. 32, no. 5, pp. 3549- 3561, May 2017, https://doi.org/10.1109/TPEL.2016.2585044 F. Kardan, R. Alizadeh, and M. R. Banaei, "A New Three-Input DC/DC Converter for Hybrid PV/FC/Battery Applications," in IEEE Journal of Emerging and Selected Topics in Power Electronics, vol. 5, no. 4, pp. 1771-1778, Dec. 2017, https://doi.org/10.1109/JESTPE.2017.273181 6 Chakraborty, S.; Vu, H.-N.; Hasan, M.M.; Tran, D.-D.; Baghdadi, M.E.; Hegazy, O. DC-DC Converter Topologies for Electric Vehicles, Plug-in Hybrid Electric Vehicles and Fast Charging Stations: State of the Art and Future Trends. Energies 2019, 12, 1569. https://doi.org/10.3390/en12081569 Kothandan Suresh, Harini Sampath, Nallaperumal Chellammal, Satish R. Jondhale, and Chokkalingam Bharatiraja, “Modular Multi-Input Bidirectional DC to DC Converter for Multi-Source Hybrid Electric Vehicle Applications”, Journal of Applied Science and Engineering, 2021, Vol. 25, No. 3, Page 389-399. https://doi.org/10.6180/jase.202206_25(3).00 04 M. Veerachary and P. Shaw, "Controller Design and Analysis for Fifth-Order Boost Converter," in IEEE Transactions on Industry Applications, vol. 54, no. 5, pp. 4894-4907, Sept.-Oct. 2018, https://doi.org/10.1109/TIA.2018.2843758 J. D. Taylor and W. Messner, “Controller Design for Nonlinear Multi-Input/MultiOutput Systems Using The Contoured Robust Controller Bode Plot” International Journal Of Robust And Nonlinear Control, vol. 24, no. 18, pp. 3196–3213, 2013, https://doi.org/10.1002/rnc.3049. M. Manogna, A. B. Amarendra Reddy, and K. Padma, “Modeling of a Three-Input Fourth-Order Integrated DC-DC Converter,” in Proceedings - 2022 International Conference on Smart and Sustainable Technologies in Energy and Power Sectors, SSTEPS 2022, Institute of Electrical and Electronics Engineers Inc., 2022, pp. 83–88. https://doi.org/10.1109/SSTEPS57475.2022.0 0032 Y. -C. Liu and Y. -M. Chen, "A Systematic Approach to Synthesizing Multi-Input DC– DC Converters," in IEEE Transactions on Power Electronics, vol. 24, no. 1, pp. 116- 127, Jan. 2009, https://doi.org/10.1109/TPEL.2008.2009170 M. Manogna, B. A. Reddy, and K. Padma, “Interaction measures in a three-input integrated DC-DC converter,” Engineering Research Express, vol. 5, no. 1, Mar. 2023, https://doi.org/10.1088/2631-8695/acc0dc. K. and J. C. Doyle. Zhou, Essentials of Robust Control. Upper Saddle River: Prentice-Hall, 1999.ISBN 978-0135258330. T. H. K. J Åström, Advanced PID control. Instrumentation, Systems, and Automation Society Research Triangle Park, NC, 2006. ISBN 978-1556179421. Akash S. Pabbewar, M. Kowsalya,” Three Level Neutral Point Clamped Inverter Using Space Vector Modulation with Proportional Resonant Controller,” Energy Procedia, Volume 103,2016, Pages 286-291, ISSN 1876-6102, https://doi.org/10.1016/j.egypro.2016.11.287 H. Dehghani Tafti, A. I. Maswood, A. Ukil, O. H. P. Gabriel, and L. Ziyou, "NPC photovoltaic grid-connected inverter using proportional-resonant controller." 2014 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, 2014. https://doi.org/10.1109/APPEEC.2014.70662 01 A. Ravi, P.S. Manoharan, J. Vijay Anand, “Modelling and simulation of three-phase multilevel inverter for grid-connected photovoltaic systems”, Solar Energy, Volume 85, Issue 11,2011, Pages 2811-2818, ISSN 0038-092X, https://doi.org/10.1016/j.solener.2011.08.020 Natarajan, Prabaharan, & Kaliannan, Palanisamy. (2017). A comprehensive review of reduced switch multilevel inverter topologies, modulation, techniques, and applications. Renewable and Sustainable Energy Reviews. 76C. 1248-1282. https://doi.org/10.1016/j.rser.2017.03.121.