Wide-bandgap devices are pushing EV on-board chargers toward higher switching frequency, greater power density and improved efficiency. A 22 kW GaN-based OBC model can combine PFC, isolated DC-DC conversion, battery charging control and thermal/efficiency analysis.
Recommended architecture
A three-phase or single-phase front-end PFC stage can regulate the DC link, followed by an isolated resonant or phase-shifted DC-DC stage. Battery charging uses CC/CV logic with voltage, current and state constraints.
What GaN changes
Higher switching frequency can reduce passive component size but increases sensitivity to switching loss, dead time, parasitics and thermal behaviour. The model should therefore expose efficiency and device-stress metrics.
Simscape implementation
Simscape Electrical is useful for physical power-stage components, while Simulink handles control loops, reference generation and state logic. Scope outputs should include input current quality, DC-link voltage, charger current, battery voltage and efficiency.
Research extensions
Bidirectional V2G operation, soft switching, predictive control, thermal derating or adaptive switching-frequency strategies can extend a base OBC model into a stronger research project.
Need this topic implemented as a simulation project?
Share your research title, abstract or base paper. The model, controller, case studies and required plots can be scoped around your research objective and software version.
