The student Eneko Agirrezabala Iradi obtained an EXCELLENT CUM LAUDE with the International Doctorate distinction
The student Eneko Agirrezabala Iradi obtained an EXCELLENT CUM LAUDE with the International Doctorate distinction
The student Eneko Agirrezabala Iradi obtained an EXCELLENT CUM LAUDE with the International Doctorate distinction
- Thesis title: Active Thermal Control of Power Semiconductors for Thermally Safe Overload Operation in Power Converter Applications
Court:
- Presidency: Francesco Iannuzzo (Politecnico di Torino)
- Vocal: Miroslav Vasic (Universidad Politécnica de Madrid)
- Secretary: Mikel Mazuela Larrañaga (Mondragon Unibertsitatea)
Abstract:
Power electronic converters are essential in renewable energy systems, grid infrastructure and electrified mobility, but they increasingly operate close to their thermal and electrical limits. This thesis investigates hardware-based and hybrid Active Thermal Control (ATC) strategies for Si and SiC power modules. A variable voltage supply is developed to enable gate-voltage-based ATC, together with electrothermal models and experimental platforms for evaluating individual and combined strategies. The methodology is validated under thermally limited operating conditions, with particular focus on electric truck traction inverters. Combining increased gate voltage and reduced switching frequency lowers junction temperature, increases dynamic current capability and reduces lifetime consumption. The approach is also extended to Low Voltage Ride Through (LVRT) events in grid-connected converters.