Albea, Carolina , Sferlazza, Antonino , GÓMEZ-ESTERN AGUILAR, FABIO, Gordillo, Francisco
No
IEEE Access
Article
Científica
3.476
0.927
01/01/2021
000719551800001
2-s2.0-85119719952
In this paper, a new control design procedure for a class of power converters based on hybrid dynamical systems theory is presented. The continuous-time dynamics, as voltage and current signals, and discrete-time dynamics, as the on- off state of the switches, are captured with a hybrid model. This model avoids the use of averaged and approximated models and includes the PWM as well as the sample-and-hold mechanism, commonly used in the industry. Then, another simplified hybrid system, whose trajectories match with the original one, is selected to design the controller and to analyse stability properties. Finally, an estimation of the chattering in steady state of the voltage and current signals is provided. The results are validated through simulation and experiments.
Pulse width modulation; Switches; Control systems; Matrix converters; Hybrid power systems; Steady-state; Mathematical models; Control of power converters; PWM; switched affine systems; hybrid dynamical systems; Lyapunov stability