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Fractional-order derivatives and integrals in PID controllers of PMSM drives
Hromek, Vít ; Veselý, Libor (referee) ; Zezula, Lukáš (advisor)
This bachelor thesis focuses on the control of a permanent magnet synchronous motor (PMSM) with a fractional order PI controller (FOPI). Using vector control, the current components are decoupled ("decoupling") and controlled individually. PI controllers are then designed on these current components, which are replaced by FOPI controllers in the later part of the paper, and the quality of the control is evaluated using the quadratic integral criterion and the ITAE criterion. Similarly, a fractional order controller is also wound for speed control. The last part of the work is focused on plotting the results for different parameters. There is no improvement in the quality of current and speed control using fractional order controller over the conventional controller.

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