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Modeling of the System Level Electric Drive using Efficiency Maps Obtained by Simulation Methods
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 01, 2014 by SAE International in United States
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This work presents a physical model that calculates the efficiency maps of the inverter-fed Permanent Magnet Synchronous Machine (PMSM) drive. The corresponding electrical machine and its controller are implemented based on the two-phase (d-q) equivalent circuits that take into account the copper loss as well as the iron loss of the PMSM. A control strategy that optimizes the machine efficiency is applied in the controller to maximize the possible output torque. In addition, the model applies an analytical method to predict the losses of the voltage source inverter. Consequently, the efficiency maps within the entire operating region of the PMSM drive can be derived from the simulation results, and they are used to represent electric drives in the system simulation model of electric vehicles (EVs).
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CitationChen, C., Mohr, M., and Diwoky, F., "Modeling of the System Level Electric Drive using Efficiency Maps Obtained by Simulation Methods," SAE Technical Paper 2014-01-1875, 2014, https://doi.org/10.4271/2014-01-1875.
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