Power distribution for improved lifetime of interleaved DC/DC converters in automotive applicationsTAVČAR, ROK (Avtor) Zajec, Peter (Mentor) DC/DC interleaved boost converterpower distributionactive thermal controlelectro-thermal modelmicrocontrollerhardware in the loopSilicon Carbide (SiC)power moduleThis thesis introduces an advanced control strategy for a DC/DC interleaved boost converter. A plain version of a controller imposes equal power distribution among the converter’s legs. Though, it does not assure the highest efficiency during the converter operation. This issue is addressed by implementing a controller that adjusts the number of active legs based on the converter load during the operation to provide higher efficiency of the converter over the complete power range. Additionally, the implemented controller solves the asymmetrical utilization of converter legs, which increases the possibility of premature failure of the maximum utilized converter legs and consequently decreasing the converter lifetime. An extra control algorithm is integrated to address this issue. It assures equal utilization of the converter legs by adjusting their operational time and by unevenly distributing the power flow among the active converter’s legs. The controller is executed on a microcontroller and was tested in real-time using the Hardware in the Loop (HiL) simulation technique. A laboratory setup was created for testing and developing the controller. Experimental results demonstrate that the implemented controller can adjust the number of active legs during converter operation and assure equal utilization of converter legs.20212022-04-14 08:31:22Magistrsko delo/naloga136156sl