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In this paper is presented a tool to develop student practices of fuzzy logic, focused on fuzzy control. The system corresponds to liquid level control system connected to a computed for the fuzzy control system. A data acquisition system was implemented for the communication process. The system consists of sensors, two actuators, serial communication channel and a microcontroller. A multitasking...
When dressing for jigging variability and model uncertainty, jig bed stratification theory analysis and jigging process jigging indoor level height variations were detected. The jigger layered theory analysis of the impact of jig bed layered important factors: stable bed loose, jump in the jigging process and eliminating the indoor level change detection by Pepper + Fuchs ultrasonic sensors and buoys,...
The gas mixing pressuring and calorific value control of gas mixing process have the characteristics of strong coupling, nonlinear, uncertainty and large time-varying. If the calorific value of mixing gas is unstable in gas pressurization station, the quality and quantity of iron and steel production will be affected. In this paper, an complex decoupling control method of fuzzy-CMAC neural network...
Jigging coal running is a widely used way in coal running areas at present. But the actual way to ensure the quality of refined coal is based on it's low reclaiming rate. logical control and conventional PID are the most common methods to control jiggers in inner land. Taking TDK jigger of Coal Washery in HeiDaiGou Junggar Energy Co. Ltd. as studying object and based on the analysis of the discharging...
In order to improve the performance of crawler paver's traveling, a new control plan of paver's traveling system was proposed. In the control plan, the left wheel control method adopted velocity closed loop control in order to keep constant-Speed Moving of the paver. The right wheel control method adopted the series structure of fuzzy control and PID control in which the fuzzy controller slightly...
The effect of hydro-viscous drive speed regulating start depends both on reasonable structural design and appropriate control strategy. But the control system used at present cannot completely satisfy practical requirements. In order to resolve the problem, a fuzzy PID cascade control system is presented based on cascade control theory in this paper. In auxiliary control loop a PID controller is used...
The flow control of radial piston is widely used in speed, position servo system. In this paper the mathematic model of the test radial piston pump is established and the simulation diagram is established in the simulink of MATLAB. Then the response curves of the system are achieved. The performance of the system is improved after adding the fuzzy-PID controller.
Choke killing is a common method to control well kick and implement well pressure control of oil and gas in the process of drilling. By adjusting choke valve opening, casing pressure and standpipe pressure can be controlled to maintain pressure balance in well and prevent well blowout. In this design, fuzzy control and expert experiences are effectively applied in parameter self adjusting in the killing...
This article introduces the make-up and principle of intelligent wheat dampen control system, establishes system mathematical models, analyses PID control and the fuzzy roles of parameter on-line dynamic self -tuning, develops a fuzzy PID controller.
The theme of the paper is treatment of discharges of sulfur dioxide from process of petrochemical, aiming at the problems of the long time, none linearity and the precise mathematic that is hard to build, we consider combining the advanced fuzzy control with the traditional automation technology to achieve low cost automatization. According to the principles of fuzzy control and the features of PLC,...
Based on research of the phase plane division control method, according to the structure of wheel loader steer by wire system and its work condition, the fuzzy five states control system specially designed for wheel loader steer by wire system is introduced in this paper. To verify its performance, the controller was simulated in MATLAB/SIMULINK based on the model of wheel loader steer by wire system...
The working principle and composition of the pump-control-motor variable speed throttle combined speed governing system are introduced, the system's AMEsim-Simulink co-simulation model is established. According to the characteristics of variable speed and throttle speed governign, the control strategy of the system is put forward. The complex controller which is based on PID with feedforward compensation...
The impact energy of the traditional hydraulic impactor can be regulated manually between the second and the third grade, and its impact frequency can not be adjusted independently. Also, they have to stop working for adjustment. In order to alter this situation, a new hydraulic impactor DBS500, which controlled by micro-electronic system, has been designed and its functions are showed as following:...
This paper presents a new laboratory experiment, which was developed to teach teacher training in mechatronics engineering students at King Mongkut's University of Technology North Bangkok (KMUTNB). The main issues regarding fuzzy logic control (FLC) for controls the electro-hydraulic systems (EHS), is discussed. In this experiment consider the use of Nation Instruments' LabVIEW™ with the associated...
The anti-lock braking system (ABS) can improve the safety of the vehicle. As the ABS assisted device, electronic brake force distribution (EBD) can automatically regulate the braking force distribution among the wheels of the vehicle, so that the wheels can reach the start condition of ABS at the same time, which can make better performance on braking distance and braking stability. In this paper,...
Based on the cabin pressure regulating system characters of the nonlinear, larger inertia and time varying parameter, the arithmetic of fuzzy immune feedback (FIMF) was proposed to adjust PID control parameters real time and increase response and control capability of pressure loop, and using immune algorithm adjusting pressure loop control parameters real time which has optimizing performance and...
In order to improve the reliability of Ultra HVDC transmission system, hierarchic control structure on UHVDC control system is discussed in this paper. Some special control requirements are introduced, compared with the conventional ??500 kV HVDC system. The special coordination control strategy of UHVDC for Balanced Operation of Dual 12-Pulse Converter Groups is proposed, A new fuzzy PI controller...
A kind of intelligent hydraulic impactor is put forward, including its operating principle and the method to design the hydraulic control system, the hardware and software modules of the computer control system. In the light of the technology characteristics of the hydraulic impactor, the fuzzy control algorithm is given. The fuzzy controller and the experimental prototype are designed according to...
For the problem of poor control precision of high-speed solenoid valves which are widely used in aero-engine control systems, a fuzzy-PID control system based on Soc single-chip is designed in this paper by using fuzzy self-tuning of PID parameters control algorithm. Because the Soc single-chip can control the output flow of high-speed solenoid valve very well by its PWM function, the monitoring system...
Warp unwinding tension control system for sizing machine lacks a precise mathematical model, and has nonlinear and time-varying characteristics. For tacking above problems, fuzzy control strategy has been proposed in this paper. To enhance control accuracy and disturbance resisting ability, fuzzy-PI controller for the parameter self-adjusting has been adopted in this system. The results of experiment...
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