The main goal of this thesis is to develop a dynamic model of the claw-pole alternator in Matlab/Simulink. At first, we give the reader a short introduction to the claw-pole alternator and its construction. Then we present the Park transformation, which is used for transforming of the stationary three-phase system abc to a rotating two-phase system dq0. The latter will help us analyze and model the synchronous machine. At first, we derive the machine equation in the stationary abc frame to be transformed to the rotary dq0 reference frame. After derivation of synchronous-machine equations, we present the procedure for identification of machine parameters that are used in the dynamic model of the machine. The identification of parameters is solved with the finite-element method using Ansys Maxwell software. The results of simulations are transformed into look-up tables that will be used in dynamic simulations. At this point we take a look at different types of inductances for nonlinear materials. We present the different types of diode rectifiers with emphasis on three-phase full-wave diode rectifier that can be found in claw-pole alternators. At the end of this work, the different models are presented and evaluated. The models are validated by compareing the simulations to measurements of the real system. Finally, we summarize the findings and provide posiibilities for future work.
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