AUT Journal of Electrical Engineering

AUT Journal of Electrical Engineering

Advanced Solar Grid Integration Solution Using a High-Efficiency Coupled Inductor Multiport Converter for Optimized Power Delivery

Document Type : Research Article

Authors
Tappeta Amar Kiran 1
Dondapati Ravi Kishore Ravi Kishore 1
Kosana Bhargava Rama Chinna Vyshnav 2
Thorati Ajay Bhargav 2
Mahanthi Aahaj Varun 2
1 Department of Electrical and Electronics Engineering, Godavari Institute of Engineering and Technology (A), Rajahmundry.
2 Department of Electrical and Electronics Engineering, Godavari Institute of Engineering and Technology (A), Rajahmundry
10.22060/eej.2026.25521.5948
Abstract
Currently, Photovoltaic (PV) solar power generation is integrated into distributed generation (DG) systems is becoming popular. Therefore, this research proposes a unique Coupled inductor based multiport (CIM) converter that combines battery storage and solar PV in a grid-connected system. The PV system produces inferior voltage owing to its intermittent and sporadic nature due to the climatic conditions. A CIM converter is utilized to convert the PV output voltage to the highest level. In order to combat the intermittency and instability associated with PV, a Proportional Integral (PI) controller is added to the grid to ensure a stable and uninterrupted supply of power. Also, the battery is exploited to store surplus energy from PV systems, permitting to use this stowed energy when the panels aren’t producing electricity. A Three phase Voltage Source Inverter (3ϕ VSI) is used to transform steady DC to AC voltage and a LC filter is employed to lessen harmonics. Additionally, the grid voltage synchronization is carried out by PI controller on load side. The developed system is also tested with the simulation outcomes from MATLAB/Simulink and comparison is made with conventional approaches. The obtained outcomes show that it attains the efficiency of 97.46%, ensures the optimized power is delivered to the grid.
Keywords
PV systems
CIM converter
PI controller
Battery
3ϕ VSI
Subjects
[1]       V. Rajagopal, D. Sharath, G. Vishwas, J. Bangarraju, S.R. Arya, and C. Venkatesh, “Optimized Controller Gains Using Grey Wolf Algorithm for Grid-Tied Solar Power Generation with Improved Dynamics and Power Quality”, 2022 In Chinese Journal of Electrical Engineering, vol. 8, no. 2, pp. 75-85.
[2]       F. Wu, B. Yang, A. Hu, Y. Zhang, W. Ge, L. Ni, C. Wang, and Y. Zha, “Inertia and Damping Analysis of Grid-Tied Photovoltaic Power Generation System With DC Voltage Droop Control”, 2021, in IEEE Access, vol. 9, pp. 38411-38418.
[3]       P. Puranen, A. Kosonen, and J. Ahola, “Technical feasibility evaluation of a solar PV-based off-grid domestic energy system with battery and hydrogen energy storage in northern climates”, 2023 Solar Energy, vol. 213, pp. 246-259.
[4]       M.M.R. Ahmed, S. Mirsaeidi, M.A. Koondhar, N.  Karami, E.M. Tag-Eldin, N.A. Ghamry, R.A. EI-Sehiemy, Z.M. Alaas, I. Mahairq, and A.M. Sharaf, “Mitigating Uncertainty Problems of Renewable Energy Resources through Efficient Integration of Hybrid Solar PV/Wind Systems into Power Networks”, 2024, in IEEE Access, vol. 12, pp. 30311-30328.
[5]       N.C. Alluraiah and P. Vijayapriya, “Optimization, Design, and Feasibility Analysis of a Grid-Integrated Hybrid AC/DC Microgrid System for Rural Electrification”, 2023, in IEEE Access, vol. 11, pp. 67013-67029.
[6]       G.M. Jagadeesan, R. Pitchaimuthu, and M. Sridharan, “A Two-stage Single-phase Grid-connected Solar-PV System with Simplified Power Regulation”, 2022, in Chinese Journal of Electrical Engineering, vol. 8, no. 1, pp. 81-92.
[7]       K.P. Joshua, L.V. Rangasamy, C.V.K. Reddy, and R. Veeruchinnan, “Energy management of solar photovoltaic-fed water pumping system based on BLDC motor drive using NBO–SDRN approach”, 2024 Electrical Engineering, vol. 106, no. 3, pp. 3045-3059.
[8]       K. Sarita, S. Kumar, A.S.S. Vardhan, R.M. Elavarasan, R.K. Saket, G.M. Shafiullah, and E. Hossain, “Power Enhancement With Grid Stabilization of Renewable Energy-Based Generation System Using UPQC-FLC-EVA Technique”, 2020 In IEEE Access, vol. 8, pp. 207443-207464.
[9]       K.S. Kavin, P. Subha Karuvelam, M. Devesh Raj, and M. Siva Subramanian, “A Novel KSK Converter with Machine Learning MPPT for PV Applications”, 2024 Electric Power Components and Systems, pp. 1-19.
[10]   M.M. Gulzar, A. Iqbal, D. Sibtain, and M. Khalid, “An Innovative Converterless Solar PV Control Strategy for a Grid-Connected Hybrid PV/Wind/Fuel-Cell System Coupled With Battery Energy Storage”, 2023 In IEEE Access, vol. 11, pp. 23245-23259.
[11]   I. Akhtar, S. Kirmani, and M. Jameel, “Reliability Assessment of Power System Considering the Impact of Renewable Energy Sources Integration into Grid with Advanced Intelligent Strategies”, 2021 In IEEE Access, vol. 9, pp. 32485-32497.
[12]   K.Y. Yap, C.R. Sarimuthu, and J.M.Y. Lim, “Grid Integration of Solar Photovoltaic System Using Machine Learning-Based Virtual Inertia Synthetization in Synchronverter”, 2020 In IEEE Access, vol. 8, pp. 49961-49976.
[13]   N. Babu, J.M. Guerrero, P. Siano, R. Peesapati, and G. Panda, “An improved adaptive control strategy in grid-tied PV system with active power filter for power quality enhancement”, 2020 IEEE Systems Journal, vol. 15, no. 2, pp. 2859-2870.
[14]   C.M.N. Mukundan, P. Jayaprakash, U. Subramaniam, and D.J. Almakhles, “Binary Hybrid Multilevel Inverter-Based Grid Integrated Solar Energy Conversion System with Damped SOGI Control”, 2020 In IEEE Access, vol. 8, pp. 37214-37228.
[15]   M.M. Mabrook, A.A. Donkol, A.M. Mabrouk, A.I. Hussein, and M. Barakat, “Enhanced the Hosting Capacity of a Photovoltaic Solar System Through the Utilization of a Model Predictive Controller”, 2024, in IEEE Access, vol. 12, pp. 62480-62491.
[16]   U. Younas, A.A. Kulaksiz, and Z. Ali, “Deep Learning Stack LSTM-Based MPPT Control of Dual-Stage 100 kWp Grid-Tied Solar PV System”, 2024, in IEEE Access, vol. 12, pp. 77555-77574.
[17]   I. Hassan, I. Alhamrouni, Z. Younes, N.H. Azhan, S. Mekhlif, M. Seyedmahmoudian, and A. Stojcevski, “Explainable Deep Learning Model for Grid-Connected Photovoltaic System Performance Assessment for Improving System Reliability”, 2024 In IEEE Access, vol. 12, pp. 120729-120746.
[18]   J.E. Hernández-Díez, C.F. Méndez-Barrios, S.I. Niculescu, and E. Ernesto Bárcenas-Bárcenas, “A current sensorless delay–based control scheme for MPPT–boost converters in photovoltaic systems”, 2020 IEEE Access, vol. 8, pp. 174449-174462.
[19]   H.Y. Ahmed, O. Abdel-Rahim, and Z.M. Ali, “New high-gain transformerless dc/dc boost converter system”, 2022 Electronics, vol. 11, no. 5, pp. 734.
[20]   I. Dagal and B. Akin, “Improved particle swarm optimization based on buck-boost converter (IPSO-BBC) for photovoltaic system applications”, 2022 Recent Adv. Sci. Eng, vol. 2, no. 2, pp. 42-48.
[21]   B. Chandrasekar, C. Nallaperumal, S. Padmanaban, M.S. Bhaskar, J.B. Holm-Nielsen, Z. Leonowicz, and S.O. Masebinu, “Non-isolated high-gain triple port DC–DC buck-boost converter with positive output voltage for photovoltaic applications”, 2020 IEEE Access, vol. 8, pp. 113649-113666.
[22]   N. Priyadarshi, M.S. Bhaskar, F. Azam, M. Singh, D.K. Dhaked, I.B.M. Taha, and M.G. Hussien, “Performance evaluation of solar-PV-based non-isolated switched-inductor and switched-capacitor high-step-up Cuk converter”, 2022 Electronics, vol. 11, no. 9, pp. 1381.
[23]   S. Hasanpour, Y.P. Siwakoti, A. Mostaan, and F. Blaabjerg, “New semi-quadratic high step-up DC/DC converter for renewable energy applications”, 2021 IEEE Trans. Power Electron, vol. 36, no. 1, pp. 433-446.
[24]   A. Mirzaee, S. Arab Ansari, and J. Shokrollahi Moghani, “Single switch quadratic boost converter with continuous input current for high voltage applications”, 2020 International Journal of Circuit Theory Application, vol. 48, no. 4, pp. 587-602.
[25]   P. Upadhyay, R. Kumar, and S. Sathyan, “Coupled-inductor-based high-gain converter utilising magnetising inductance to achieve soft-switching with low voltage stress on devices”, 2020 IET Power Electron, vol. 13, no. 3, pp. 576-591.
AUT Journal of Electrical Engineering
Volume 58, Issue 4
2026
Pages 803-820