Small and special electrical machines

U diplomskome radu opisani su DC motori sa i bez četkica te navedena njihova podjela i opisan princip rada. Isto to je napravljeno za sinkronie i asinkrone motore. Za svaki motor je prikazana građa te na kraju navede mane pojedinih motora. Objašnjenje su metode kontrole DC i AC motora i objašnjen princip na koji oni generiraju napon potreban motoru za stvaranje okretnoga magnetskoga polja. Simulacijama u Ansys-u dobili smo karakteristike zaleta motora odabranih tako da pokrijemo sve kategorije motora, a to su: DC, AC sinkroni i AC asinkroni. Na temelju dobivenih grafova zaleta donosimo zaključke o radu motora i potvrđujemo opisane karakteristike rada motora opisane u teorijskome dijelu. Uspoređujemo karakteristike zaleta DC i AC reluktantnih motora da bih vidjeli kako promjena konstrukcije i vrste napajanja utječe na radne karakteristike motora.The diploma thesis describes DC motors with and without brushes and states their division and describes the principle of operation. The same is done for synchronous and asynchronous motors. For each engine, the material is shown and at the end it lists the shortcomings of individual engines. The explanation is the methods of controlling DC and AC motors and the principle on which they generate the voltage required by the motor to create a rotating magnetic field is explained. Simulations in Ansys gave the motor start characteristics selected to cover all motor categories, namely: DC, AC synchronous and AC asynchronous. Based on the obtained start-up graphs, we draw conclusions about the operation of the engine and confirm the described characteristics of the engine operation described in the theoretical part. We compare the starting characteristics of DC and AC reluctant motors to see how a change in design and type of power supply affects the performance of the motor