The topic of this thesis is a computer graphic simulation of operation of electromechanic converters (machines). Idea for simulation of induction machine, as well as other machines, was to present the vector theory to the students. In this case vectors, which rotate in space, are observed. How each of the variable's vector is acting is shown through an animation. This makes the machine operation easier to visualize. The program interface, with its buttons and scrollbars, allows the user to influence the parameters and monitor the response.
Firstly the transformations and graphic representation from input phase variables via resultant vector into arbitrary two phase reference frame are observed. The most appropriate new system for explanation of induction machine operation is the rotor field reference frame, which is taken as the basis for simulation. Through theory, with added pictures (printscreens) from program, the induction and synchronous machine will be analyzed in this reference frame.
After that, I will describe the integrated development environment Lazarus and its capabilities. Program, which was developed in this environment, its functions and available options will also be shown. The basis for the program presentation are the machine derived equations in the new coordinate system. The user can observe the machine in different steady states under different circumstances (under load etc).
A tool like this represents a great aid for learning and visualization, but at the same time one should be aware of its limitations, since the operation of a real machine is much more complex.
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