Intelligent tracking control of a PMLSM using self‐evolving probabilistic fuzzy neural network

2017 ◽  
Vol 11 (6) ◽  
pp. 1043-1054 ◽  
Author(s):  
Syuan‐Yi Chen ◽  
Tung‐Sheng Liu
Keyword(s):  
Neural Network ◽  
Tracking Control ◽  
Fuzzy Neural Network ◽  
Fuzzy Neural ◽  
Intelligent Tracking

scholarly journals Voltage Tracking Control of DC- DC Boost Converter Using Fuzzy Neural Network

2018 ◽  
Vol 9 (4) ◽  
pp. 1657 ◽  
Author(s):  
Waleed Ishaq Hameed ◽  
Baha Aldeen Sawadi ◽  
Ali Muayed
Keyword(s):  
Neural Network ◽  
Tracking Control ◽  
Output Voltage ◽  
Fuzzy Neural Network ◽  
Sudden Change ◽  
Input Voltage ◽  
Boost Converter ◽  
Data Sets ◽  
Fuzzy Neural ◽  
Output Load

<span lang="EN-US">This paper deals with voltage tracking control of DC- DC boost converter based on Fuzzy neural network. Maintaining the output voltage of the boost converter in some applications are very important, especially for sudden change in the load or disturbance in the input voltage. Traditional control methods usually have some disadvantages in eliminating these disturbances, as the speed of response to these changes is slow and thus affect the regularity of the output voltage of the converter. The strategy is to sense the output voltage across the load and compare it with the reference voltage to ensure that it follows the required reference voltages. In this research, fuzzy neural was introduced to achieve the purpose of voltage tracking by training the parameter of controller based on previous data. These data sets are the sensing input voltage of the converter and the value of the output load changes. To establish the performance of proposed method, MATLAB/SIMULINK environments are presented, simulation results shows that proposed method works more precisely, faster in response and elimination the disturbances</span>

Neural Network Identification and Direct Adaptive Fuzzy Neural Network (DAFNN) Controller for Unknown Nonlinear Non-affine Pneumatic Servo System

2021 ◽  
Author(s):  
Peyman Mawlani ◽  
Mohammadreza Arbabtafti
Keyword(s):  
Neural Network ◽  
Trajectory Tracking ◽  
Tracking Control ◽  
Fuzzy Neural Network ◽  
Servo System ◽  
Trajectory Tracking Control ◽  
Adaptive Fuzzy Neural Network ◽  
Non Linear ◽  
Fuzzy Neural ◽  
Pneumatic Servo System

In this paper, a direct adaptive fuzzy neural network (DAFNN) controller for trajectory tracking control of the non-linear non-affine pneumatic servo system is presented. First, using a neural network identifier, the non-linear dynamics of a real pneumatic servo system is simulated. By comparing the output of the neural network and the output of the experimental setup, it is observed that the non-linear pneumatic actuator system is well-identified using neural networks. By incorporating the Lyapunov stability theorem, the adaptive laws for the parameters of the controller are obtained, parameter boundedness and stability of the closed-loop system are guaranteed. Finally, practical results are successfully implemented for trajectory tracking control of the pneumatic servo system, in which the effect of the simultaneous updating of the antecedent and consequent’s parameters of the fuzzy neural network controller has been investigated. The tracking error ±1.3mm and ±1 mm for proposed updating method compared to ±2.5mm and ±3.5mm, for a case that the weigh parameters are merely adjusted, are obtained. The results indicate the proposed adjustment method improves the performance of the controller in the presence of unknown nonlinearities and dynamics uncertainty.

Sign in / Sign up

Export Citation Format

Share Document