The best way to conference proceedings by Francis Academic Press

Web of Proceedings - Francis Academic Press
Web of Proceedings - Francis Academic Press

Analysis of Voltage Mode Buck Converter Based on PID Control Characteristic

Download as PDF

DOI: 10.25236/iccpb.2018.011

Author(s)

Xitong Zhu, Fangya Sun, Nuo Zhou, Hongmei Xu

Corresponding Author

Hongmei Xu

Abstract

Aiming at the strongly nonlinear behavior of Buck converter, the state space average method is used to model Buck converter, and the small signal model and open-loop transfer function are obtained. According to the open-loop transfer function, PID controller is designed. For the shortcoming of the traditional PID controller which cannot change the control parameters dynamically according to the change of the system’s operating point, the fuzzy algorithm is introduced into the PID controller. To model PID controller and fuzzy PID controller, MATLAB/Simulink is used. It can be shown from simulation results that fuzzy PID control has better dynamic control performance and can be used in other converters.

Keywords

Buck converter,State space average method,PID controller,Fuzzy algorithm