Fabiola Angulo Garcia

Rapid Control Prototyping of a permanent magnet DC motor using non-linear sliding control ZAD and FPIC

This paper shows the behavior of the buck power converter - DC-motor coupled system. The controller is designed using Zero Average Dynamic (ZAD) and Fixed Point Inducting Control (FPIC) techniques. The variable to be controlled is the motor speed. The designs have been tested in a Rapid Control Prototyping (RCP) system based on Digital Signal Processing (DSP) for dSPACE platform. The results show that the speed motor has very good performance when it is controlled with these techniques. The robustness of the system is proven by varying a constant of the controller. Experimental and simulations results agree only when quantization effects are considered in simulations. After this consideration, numerical and experimental bifurcations diagrams agree in stable zone as well as in transition to chaos.

Fractional PID and the effect of changing the differintegrator's order

In this paper, we introduce a procedure to assess the performance of three particular systems, when the orders of the integrator and differentiator of a fractional PID controller are changed in a range of values. At first, a conventional tuning method for PID controllers is used, and then, the orders are changed individually. The dynamical response is analyzed in transient state as well as when a load disturbance is introduced.