PFC Design via FRIT Approach and Adaptive PID Control System Design for Discrete-time Systems

2012 ◽  
Vol 45 (3) ◽  
pp. 64-69 ◽  
Author(s):  
Ikuro Mizumoto ◽  
Taro Takagi
Keyword(s):  
Control System ◽  
System Design ◽  
Discrete Time ◽  
Pid Control ◽  
Control System Design ◽  
Discrete Time Systems ◽  
Adaptive Pid Control ◽  
Time Systems

Model-free adaptive PID control for nonlinear discrete-time systems

2020 ◽  
Vol 42 (10) ◽  
pp. 1797-1807 ◽  
Author(s):  
Shuhua Zhang ◽  
Ronghu Chi
Keyword(s):  
Discrete Time ◽  
Mathematical Analysis ◽  
Pid Control ◽  
Contraction Mapping Principle ◽  
Unknown Parameters ◽  
Model Free ◽  
Discrete Time Systems ◽  
Gradient Parameter ◽  
Adaptive Pid Control ◽  
Time Systems

This work explores a model-free adaptive PID (MFA-PID) control for nonlinear discrete-time systems with rigorous mathematical analysis under a data-driven framework. An improved compact form dynamic linearization (iCFDL) is proposed to transfer the original nonlinear system into an affined linear data model including a nonlinear residual term. Both a time-difference estimator and a gradient parameter estimator are designed to estimate the nonlinear residual uncertainties and the unknown parameters in the iCFDL model. Subsequently, a novel improved CFDL based MFA-PID (iCFDL-MFA-PID) control is proposed by incorporating these two estimators. The results are extended by the use of improved partial format dynamic linearization (iPFDL) and full format dynamic linearization (iFFDL). The theoretical results are shown using contraction mapping principle-based mathematical analysis, as well as simulations.

scholarly journals Observer-based H∞ PID control for discrete-time systems under hybrid cyber attacks

2021 ◽  
Vol 9 (1) ◽  
pp. 232-242
Author(s):  
Pengyu Wen ◽  
Nan Hou ◽  
Yuxuan Shen ◽  
Jiahui Li ◽  
Yi Zhang
Keyword(s):  
Discrete Time ◽  
Pid Control ◽  
Cyber Attacks ◽  
Discrete Time Systems ◽  
Time Systems

scholarly journals Comparative study of zero effects in pole-placement control system design via the shift and delta transforms

2005 ◽  
Vol 18 (3) ◽  
pp. 439-451
Author(s):  
Milica Naumovic
Keyword(s):  
Control System ◽  
System Design ◽  
Pole Placement ◽  
Control System Design ◽  
Single Input Single Output ◽  
Single Output ◽  
Continuous Time Systems ◽  
Single Input ◽  
Pole Placement Control ◽  
Time Systems

This paper deals with the special replacement of the shift operator and its associated z transform by delta operator and ? transform, respectively. The aim of the paper is to clarify the role of zeros of discretized linear single input single output continuous-time systems modeled by shift and delta operators. In particular, the effect of zero dynamics on the control system design based on classical pole-zero assignment in the case of both operators is considered. The analysis is illustrated by simulation results.

Sign in / Sign up

Export Citation Format

Share Document