The thesis addresses braking of a variable frequency drive fed induction machine, with a focus on loss braking, also known as "AC braking". The work is divided into two main parts. In the first part the induction machine model, developed using the Matlab/Simulink software package, is presented, along with the laboratory measurements and calculations necessary to obtain the model parameters of a real induction machine. In the second part regulators are added to the model and simulations are carried out using different parameters, with the results then being mutually compared and evaluated. During the analyses of braking simulation results certain trends were shown, which served as a guideline when selecting the focus for further simulations.
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