Design of a PI-Controlled Non-Ideal Bidirectional DC-DC Converter for Battery Charging Applications
III. Uluslararası Türk Dünyası Genç Akademisyenler Kongresi, Baku, Azerbaycan, 13 - 16 Mayıs 2026, ss.617-618, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: Baku
- Basıldığı Ülke: Azerbaycan
- Sayfa Sayıları: ss.617-618
- Kayseri Üniversitesi Adresli: Evet
Özet
In this study, the performance of a bidirectional DC-DC converter used in battery charging applications under buck mode operation is examined using a proportional-integral (PI) controller. Bidirectional DC-DC converters, widely used in electric vehicles and renewable energy systems, provide high flexibility and performance in battery charging and discharging processes by enabling bidirectional control of energy flow. The battery charging process carried out in buck mode is particularly critical in terms of preserving battery life, limiting overcurrent, and precisely regulating the output voltage.Within this scope, a non-ideal circuit model of the bidirectional DC-DC converter operating in buck mode is derived. The PI controller is preferred to eliminate steady-state error and to ensure accurate tracking of the reference voltage and battery current for the non-ideal bidirectional converter model. In addition, a more realistic analysis is conducted in the Matlab/Simulink simulation environment using the non-ideal circuit model of the bidirectional DC-DC converter.The simulation results demonstrate that the PI controller successfully achieves both voltage and current regulation during the battery charging process, with a short settling time and a stable system response. These characteristics indicate that the proposed PI control method provides an effective and reliable solution for battery charging applications. The findings obtained from the simulation study show that the PI controller stands out as a control structure due to its ease of design, practicality, and adequate performance for bidirectional DC-DC converters.