VSheeja, S.Kalpana, R.Singh, B.2026-02-032025IEEE Journal of Emerging and Selected Topics in Industrial Electronics, 2025, 6, 3, pp. 972-98126879735https://doi.org/10.1109/JESTIE.2025.3563085https://idr.nitk.ac.in/handle/123456789/20610This article investigates a bidirectional dc–dc converter having a very high voltage gain for grid integration of a microgrid supported by renewable power sources. The proposed converter interfaces the low-voltage solar PV and battery energy storage systems with a high-voltage system. Because of its large voltage gain both in forward and reverse operating modes, the proposed converter can be used at lower and moderate duty ratios. In comparison to previously reported topologies of a similar nature, this converter can provide better performance with fewer switches and passive components, resulting in better efficiency. The input current's ripple is observed to be lowered as a result of the parallel operation of inductors. The converter stability is investigated using state space modeling and small signal analysis. The laboratory hardware prototype confirms the suggested converter's effectiveness for bidirectional operation, and the outcomes are in line with theoretical studies. © 2020 IEEE.Capacitor storageDC power transmissionElectric power transmission networksPassive solarSolar energy conversionBattery energy storageBidirectional DC/DC convertersDC converterGrid integrationHigh gainHigh gain DC-DC converterIsolated bidirectional convertersNon isolated bidirectional converterSolar PV grid integrationSolar PVsBattery storage