Fuzzy Sliding Mode Controller with Gain Auto-tuning for Un-symmetric Input Temperature Control System

2006 ◽  
Author(s):  
Shiuh-Jer Huang ◽  
Hung-Yi Chen ◽  
Chen-Chuan Wang
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Sliding Mode ◽  
Temperature Control System ◽  
Sliding Mode Controller ◽  
Fuzzy Sliding Mode ◽  
Auto Tuning

A new control system design for a small hydro-power plant based on particle swarm optimization-fuzzy sliding mode controller with Kalman estimator

2011 ◽  
Vol 34 (4) ◽  
pp. 388-400 ◽  
Author(s):  
A Zargari ◽  
R Hooshmand ◽  
M Ataei
Keyword(s):  
Particle Swarm Optimization ◽  
Control System ◽  
Sliding Mode ◽  
Particle Swarm ◽  
Local Network ◽  
Sliding Mode Controller ◽  
Swarm Optimization ◽  
Hydro Power ◽  
Fuzzy Sliding Mode ◽  
System Variables

One of the main problems in small hydro-power plants that are locally used is their frequency control system. In this paper, a suggested control system based on the fuzzy sliding mode controller is presented for controlling the network frequency. Also, the proposed control strategy is compared with a PI controller and conventional sliding mode controller. In order to regulate the membership functions of fuzzy system more accurately, the particle swarm optimization algorithm is also applied. Moreover, because of unavailability of the control system variables, an estimator is suggested for estimating and identifying the system variables. This estimator will reduce the costs of implementing the control method. The simulation results show the ability of controller system in controlling the local network frequency in the presence of load and parameter’s variations.

Application Analysis of the Fuel Viscosity and Temperature Control System Based on the Sliding Mode Theory

2012 ◽  
Vol 503-504 ◽  
pp. 1116-1119
Author(s):  
Zhuan Zhao Liu ◽  
De Shang Chang ◽  
Xin Jian Liu
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Sliding Mode ◽  
Variable Structure Control ◽  
Variable Structure ◽  
Fuel Oil ◽  
Temperature Control System ◽  
Structure Control ◽  
Heat Transfer Theory ◽  
Sliding Mode Variable Structure

With the shortage of the petroleum resources day by day, the fuel oil price is becoming higher and higher. The ship companies want to use the heavy diesel oil and inferior fuel with lower price for the marine diesel. Temperature is a variable with great inertia. Using the PID control algorithm, which will lead to the consequence of over correction in the controlling process, the advantage of sliding mode variable structure control is the small over correction. In this paper, based on thermodynamics and heat transfer theory, the mathematical model of temperature control system is built, the sliding mode movement equation and the sliding mode variable structure controller is obtained. This makes the application of temperature control take the advantage of sliding mode variable structure control.

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