Modeling of a Permanent Magnet Synchronous Motor Driven Electric Vehicle Drive System

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Dr. Balázs Gergely György
Department of Electric Power Engineering

It is a generally used method at developing fully electrical vehicles – which are more and more spreading nowadays – to build the computerized model of the electric machine and drive system first. The model’s working is represented by the simulations, therefore the designing and producing can be simplified and the parameters of the realised vehicle can be optimized. Using the results of the simulations special informations of the electric machine’s behaviour can be received, that previously was only possible by measurements on a test bench.

This thesis describes the construction of a computerized electric drive model that meets the requirements of an electric vehicle. The detailed analysis of the nowadays most wide-spread and realizable electric drive systems is also required in order to select the ideal version. An already constructed drive model is also presented in the paper, that the properties of the realised model can be compared with.

From the received results the electrical and mechanical stress of the machine can be defined as well as the consumption graph, which is very important for the calibrating of the battery. With the results of the simulations the two models’ behaviour could be compared as well.


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