Results 191 to 200 of about 45,725 (208)

Fuzzy anti-reset windup for PID controllers

Control Engineering Practice, 1993
Abstract In this paper anti windup schemes for PID controllers are proposed that consider not only actuator constraints but also process state constraints. The schemes are fuzzy generalizations and combinations of the traditional conditional integration anti windup schemes.
A. Hansson, P. Gruber, J. Tödtli
openaire   +1 more source

Two-level tuning of fuzzy PID controllers

IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics), 2001
Fuzzy PID tuning requires two stages of tuning; low level tuning followed by high level tuning. At the higher level, a nonlinear tuning is performed to determine the nonlinear characteristics of the fuzzy output. At the lower level, a linear tuning is performed to determine the linear characteristics of the fuzzy output for achieving overall ...
Mann, Georges K. I., Bao-Gang, Hu, Gosine, Raymond G.   +2 more
openaire   +3 more sources

Intelligent Control Systems and Fuzzy Controllers. II. Trained Fuzzy Controllers, Fuzzy PID Controllers

Automation and Remote Control, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Vassilyev, S. N., Kudinov, Yu. I., Pashchenko, F. F., Durgaryan, I. S., Kelina, A. Yu., Kudinov, I. Yu., Pashchenko, A. F.   +6 more
openaire   +1 more source

Intelligent Fuzzy PID Controller

2008
This chapter aims to describe the development and two tuning methods for a self-organising fuzzy PID controller. Before application of fuzzy logic, the PID gains are tuned by conventional tuning methods. In the first tuning method, fuzzy logic at the supervisory level readjusts the three PID gains during the system operation.
openaire   +1 more source

Improving Vegas Algorithm Using PID and Fuzzy PID Controllers

2006
Since in the TCP protocol the source has no idea which congestion window size will result in the best performance, it tunes the window size according to parameters such as loss, duplicate acknowledge and etc. The Vegas algorithm is one of the most intelligent flow control algorithms that despite other protocols, tunes the window size by estimation of ...
Aria Shahingohar, Mohammad Bagher Menhaj, Mehdi Karrari, Mohammad Hossein Yaghamae   +3 more
openaire   +1 more source

Flexible complexity reduced PID-like fuzzy controllers

IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics), 2000
In this paper, a flexible complexity reduced design approach for PID-like fuzzy controllers is proposed. With the linear combination of input variables as a new input variable, the complexity of the fuzzy mechanism of PID-like fuzzy controllers is significantly reduced.
C W, Tao, J S, Taur
openaire   +2 more sources

Developments of fuzzy PID controllers

Expert Systems, 2005
Abstract: This paper describes the development and tuning methods for a novel self-organizing fuzzy proportional integral derivative (PID) controller. Before applying fuzzy logic, the PID gains are tuned using a conventional tuning method. At supervisory level, fuzzy logic readjusts the PID gains online.
openaire   +1 more source

An Improved Robust Fuzzy-PID Controller With Optimal Fuzzy Reasoning

IEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics), 2005
Many fuzzy control schemes used in industrial practice today are based on some simplified fuzzy reasoning methods, which are simple but at the expense of losing robustness, missing fuzzy characteristics, and having inconsistent inference. The concept of optimal fuzzy reasoning is introduced in this paper to overcome these shortcomings.
Han-Xiong, Li, Lei, Zhang, Kai-Yuan, Cai, Guanrong, Chen   +3 more
openaire   +2 more sources

Mamdani Fuzzy PID Controllers

2009
This chapter contains sections titled: Introduction PID Control Different Types of Fuzzy Controllers Fuzzy PI/PD Controllers as Linear PI/PD Controllers Fuzzy PI/PD Controllers as Piecewise Linear PI/PD Controllers Simplest Fuzzy PI Controller as Nonlinear Variable Gain PI Controller Another Simplest Fuzzy PI ...
openaire   +1 more source

Comparative Study on Fuzzy PID Controller and Conventional PID Controller

Applied Mechanics and Materials, 2013
PID controller is simple, stable and reliable. But the controller parameters cannot adjust themselves when the object varies. To solve the problem, this paper combined fuzzy control and PID controller, realized self-adjustment of PID parameters using fuzzy reasoning method, analysed the advantages over the traditional PID controller. The simulation was
Huan Xin Cheng, Dao Sheng Zhang, Li Cheng   +2 more
openaire   +1 more source