Accumulators used in electrically powered race cars need to provide high amounts of power while maintaining as little weight as possible. Therefore the cell selection is a compromise between a high power density and a high energy density. A hybrid accumulator combines high energy density accumulators with supercapacitors that can provide very high amounts of power for a short period of time. To connect these two energy storages to the drivetrain, a DC/DC converter is needed to adapt the voltages. In this thesis a prototype of a dual input synchronous boost converter for use in a hybrid accumulator in a formula student electric race car is assembled and commissioned. The prototype which uses silicon-carbide semiconductors and has a maximum power of 40 kW is commissioned in a laboratory environment. The evaluation of optimal parameters for the design of the converter is determined using a multi-objective optimization implemented in Matlab and Simulink. For the control of the converter a state space representation is determined and compared to a circuit simulation using PLECS.

Studienbetreuer: Adrian Omlin