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

Amar Kiran, Tappeta; Ravi Kishore, Dondapati Ravi Kishore; Chinna Vyshnav, Kosana Bhargava Rama; Bhargav, Thorati Ajay; Aahaj Varun, Mahanthi

doi:10.22060/eej.2026.25521.5948

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 ²

Kosana Bhargava Rama Chinna Vyshnav ¹

Thorati Ajay Bhargav ¹

Mahanthi Aahaj Varun ¹

¹ Department of Electrical and Electronics Engineering, Godavari Institute of Engineering and Technology (A), Rajahmundry

² Department of Electrical and Electronics Engineering, Godavari Global University, 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