Riassunto analitico
This thesis describes the work carried out during the collaboration in the R&D department of Ducati Motor Holding. The study includes the development of a versatile Simulink model for the simulation of a fully electric powertrain for a motorcycle, including the electric machine, inverter, battery pack and vehicle dynamic considerations. Then, the model was applied in an attempt to generate the results reported in an actual motor’s datasheet. From the analysis of such results, the model was calibrated in order to contemplate the non-linear behaviour of the machine due to magnetic saturation, allowing to have a partially map-based model. The maps obtained involve torque output, currents in the d-q reference frame and equivalent inductances. The analysis and the resulting performance maps were used to feed the control algorithm of the inverter, based on field-oriented control. Afterwards, the results of the tests carried out on the actual electric drive in a dedicated test bench are presented and analysed. Among the most important results collected from experiments, it is possible to mention the magnet flux, the torque constant and the characterisation of the machine’s flux. Additionally, this part includes the description of the testbench setup, the test procedures and a summary of the troubleshooting faced during the experiments.
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Abstract
This thesis describes the work carried out during the collaboration in the R&D department of Ducati Motor Holding. The study includes the development of a versatile Simulink model for the simulation of a fully electric powertrain for a motorcycle, including the electric machine, inverter, battery pack and vehicle dynamic considerations. Then, the model was applied in an attempt to generate the results reported in an actual motor’s datasheet. From the analysis of such results, the model was calibrated in order to contemplate the non-linear behaviour of the machine due to magnetic saturation, allowing to have a partially map-based model. The maps obtained involve torque output, currents in the d-q reference frame and equivalent inductances. The analysis and the resulting performance maps were used to feed the control algorithm of the inverter, based on field-oriented control. Afterwards, the results of the tests carried out on the actual electric drive in a dedicated test bench are presented and analysed. Among the most important results collected from experiments, it is possible to mention the magnet flux, the torque constant and the characterisation of the machine’s flux. Additionally, this part includes the description of the testbench setup, the test procedures and a summary of the troubleshooting faced during the experiments.
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