A High-Power Solar PV-fed TISO DC-DC Converter for Electric Vehicle Charging Applications

Lijin Kunjuramakurup, Sheik Mohammed Sulthan, Muhammed Shanir Ponparakkal, Veena Raj and Mathew Sathyajith ()
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Lijin Kunjuramakurup: EEE Department, TKM College of Engineering Kollam, Kerala 691005, India
Sheik Mohammed Sulthan: Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan BE1410, Brunei
Muhammed Shanir Ponparakkal: EEE Department, TKM College of Engineering Kollam, Kerala 691005, India
Veena Raj: Faculty of Integrated Technologies, Universiti Brunei Darussalam, Bandar Seri Begawan BE1410, Brunei
Mathew Sathyajith: Faculty of Engineering and Science, University of Agder, 4879 Grimstad, Norway

Energies, 2023, vol. 16, issue 5, 1-22

Abstract: In this paper, a two-input, single-output (TISO) DC-DC converter for electric vehicle charging applications with solar photovoltaic (PV) as one of the sources is discussed. A novel, simple, and effective control strategy with maximum power point tracking (MPPT) to maximize power from PV while maintaining a constant bus voltage is proposed. A 100 V, 100 W TISO DC-DC converter is designed and comprehensive simulations are conducted under different conditions. The system characteristics are validated by comparing the results with a conventional P&O algorithm and multiple step size P&O algorithm. The proposed control strategy can precisely generate control signals to track MPPT while maintaining the bus voltage by controlling the output of a fixed DC source according to the changes in PV generation. The overall efficiency of the proposed approach is 98.67%, and the average output voltage is 99.09 V under selected conditions. The overall average output voltage ripple is 0.22% with the proposed approach, while it is 2.91% and 1.55% with the conventional P&O and multiple step size P&O MPPT techniques, respectively. Further, a 500 V, 17 kW high-power converter is designed and a simulation is carried out. The high-power converter provides an average output voltage of 496.92 V with an overall efficiency of 98.72%, and the average output voltage ripple is 0.16%. The results obtained from the simulation under the selected conditions lead to the conclusion that the converter has better efficiency and less variation in the output voltage at higher power levels with the proposed control technique.

Keywords: TISO converter; renewable energy sources; solar PV module; MPPT algorithms; linear line–slope interpolation algorithm (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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