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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Applied Power Engineering (IJAPE)
Jawahar Marimuthu
Mepco Schlenk Engineering College
Control & Systems Engineering Electrical & Electronics Engineering

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Efficiency enhancement of solar PV powered micro-integrated high frequency isolated vehicle battery charging converter Jawahar Marimuthu; Jayasankar V; Karthik Kumar K; Edward Rajan S
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 2: June 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (488.803 KB) | DOI: 10.11591/ijpeds.v10.i2.pp953-960

Abstract

This Paper proposes a method to improve the efficiency of charging the battery used in autonomous electric vehicle powered by foldable roof-mounted solar photovoltaic (PV) generation system. The conventional vehicle battery charging application from solar PV consists of a boost converter in the frontend followed by a full bridge converter with discrete switches. Here an attempt is made on the total scheme with a micro integrated package to have better conversion efficiency with high power density. The total system is controlled digitally incorporating zero voltage transition (ZVT) in the full bridge conversion. A typical specification with a power level of 300-400 W was targeted and achieved.
Sliding mode control of a solar powered switched-inductor based quadratic DC-DC converter for sustainable EV battery charging application Jawahar Marimuthu; Edward Rajan Samuel Nadar
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 2: June 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i2.pp712-723

Abstract

The growing demand for sustainable transportation and fast charging solutions requires efficient power conversion technologies for solar electric vehicles or electric vehicles (SEVs/EVs). A non-isolated solar-powered switched-inductor quadratic DC-DC converter is proposed here to achieve high voltage gain in a practical way under reduced stress on power devices. A switched-inductor network blended with CCM operation avoids the extremely high duty cycles and high electromagnetic interference in conventional boost converters. A sliding mode control (SMC) strategy is applied here to improve robustness against parameter variations, ensure stable operation against dynamic load variations, and extract maximum power during solar-powered charging operation. This makes the topological platform proposed in this study especially suitable for a wide variety of applications, such as for SEVs and fast-charging applications of EVs. Detailed MATLAB/Simulink analyses along with a laboratory-scale prototype verify the performance of the converter under practical operation conditions and confirm the high efficiency of 91-96% at varied irradiance, low voltage ripple of 0.5-1.5% of output voltage and input current ripple of 5-12% of input current, reduced switching losses of 1-4%, and suitability of the presented converter for renewable-energy-based transportation systems.
Voltage stress mitigation in high-gain DC-DC converters via dual Z-source DC-DC converter Jawahar Marimuthu; Arockiaraj Sesaiya; Bhavani Ramachandran; Ramya Hyacinth Lourdusamy
International Journal of Applied Power Engineering (IJAPE) Vol 15, No 2: June 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijape.v15.i2.pp735-743

Abstract

This paper presents a novel dual Z-source DC-DC converter designed to address the limitations of conventional high step-up converters used in renewable energy applications such as solar photovoltaic systems and fuel cells. Traditional boost and impedance-source converters often suffer from high voltage stress, low efficiency at higher power levels, and complex multi-stage configurations. To overcome these challenges, the proposed topology integrates a hybrid structure comprising symmetrical inductors and capacitors, enabling high voltage gain at reduced duty cycles while minimizing component stress. The converter is analytically modelled and evaluated under continuous conduction mode, and its performance is verified through MATLAB/Simulink simulations and experimental validation using a hardware prototype. The results demonstrate that the proposed converter achieves a voltage gain of up to 10× with a duty cycle below 0.5, while maintaining efficiency above 95% and significantly reducing voltage stress across switching devices. Compared to existing high step-up converters, the proposed design offers improved efficiency, reduced component count, and enhanced reliability. These features make it a promising solution for efficient and sustainable energy conversion in modern renewable energy systems.
Co-Authors Arockiaraj Sesaiya Bhavani Ramachandran Edward Rajan S Edward Rajan Samuel Nadar Jayasankar V Karthik Kumar K Ramya Hyacinth Lourdusamy