Lecture 10 Dual Active Bridge converter - IV

🚗⚡ Dual Active Bridge (DAB) Converter – IV | Inductor Current Analysis | Average Power Derivation | Electric Vehicles | Lecture 10 In this lecture, we continue the detailed analysis of the Dual Active Bridge (DAB) Converter by deriving the inductor current waveform and average power transfer equation under Single Phase Shift (SPS) control. A step-by-step analysis of all four operating modes is presented using bridge voltages, inductor voltage, current waveforms, and switching states. The lecture explains how the leakage inductance influences the slope of the inductor current in each operating mode and discusses the concept of back power (circulating power) that does not contribute to useful energy transfer. Finally, the average power transferred by the DAB converter is derived, followed by a practical example of a 400 V to 750 V EV charging system operating under Single Phase Shift control. 📚 Topics Covered ✅ Review of Dual Active Bridge (DAB) Converter ✅ Single Phase Shift (SPS) Control ✅ Four Operating Modes of DAB ✅ Inductor Voltage in Each Operating Mode ✅ Inductor Current Waveform Derivation ✅ Effect of Leakage Inductance ✅ Current Slope Analysis ✅ Load Current Waveform ✅ Back Power (Circulating Power) ✅ Average Power Transfer Derivation ✅ Practical 400 V to 750 V EV Charging Example ✅ Switching Waveforms and Power Flow Analysis 🎯 Who Should Watch? B.Tech. and M.Tech. students Power Electronics learners Electric Vehicle enthusiasts GATE and ESE aspirants Researchers working on isolated DC–DC converters Engineers designing EV chargers and battery energy storage systems 📖 Recommended References R. W. Erickson and D. Maksimović, Fundamentals of Power Electronics, 2nd Edition, Springer. R. W. De Doncker, D. M. Divan, and M. H. Kheraluwala, "A Three-Phase Soft-Switched High-Power-Density DC/DC Converter for High-Power Applications," IEEE Transactions on Industry Applications. #DualActiveBridge #DABConverter #PowerElectronics #SinglePhaseShift #InductorCurrent #AveragePower #BackPower #CirculatingPower #ElectricVehicles #EVCharging #BidirectionalConverter #DCDCConverter #BatteryCharging #HighFrequencyTransformer #ElectricalEngineering #EngineeringStudents #GATE #NPTEL #IITRoorkee #PowerConverter