Nonlinear Controller for the Set-Point Regulation of a Buck Converter System
Autor
Campos-Mercado, Eduardo
Mendoza-Santos, Edwin Fernando
Torres-Muñoz, Jorge Antonio
Román-Hernández, Edwin
Moreno-Oliva, Víctor Iván
Hernández-Escobedo, Quetzalcoatl
Perea Moreno, Alberto Jesús
Editor
MDPIFecha
2021Materia
Nonlinear PID controllerBuck converter
Set-point regulation
Simulation results
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In this paper, we present a nonlinear PID controller based on saturation functions with variable parameters in order to regulate the output voltage of a buck converter in the presence of changes in the input voltage. The main feature of the proposed controller is to bound the control input with a variable parameter to avoid the windup effect generated by the combination of the integral control action and some operation conditions. The main advantages of the proposed nonlinear PID controller are its low computing cost and the simple tuning task to implement the control strategy in an embedded system. The acceptable behavior of the closed-loop system is presented through the simulation and experimental results.