Yan Xiang Wu

Simulation Analysis of Vector Control of Fuzzy-PID System Based on Mine Fanner Load

In this paper, through analysis on characteristics of the operation of the mine fanner, According to the requirement of low speed and smooth operation and quick response for AC speed regulating system of mine fanner, a new control system that based on vector control of Fuzzy-PID was designed. The simulation model was simulated and analysised by MATLAB/SIMULINK. The result indicated that the vector control of Fuzzy-PID system can not only quickly responded to the change of the load torque but also have good speed control performance, and has reliable engineering practical value.

Application of GPC Algorithm in Level Control System

In order to improve the dependability and security of the lever control system, we introduced the generalized predictive control (GPC) algorithm. We used MATLAB/Simulink program development tools to control the double capacity water tank. At first, we used the water tank level control device as the object and set up a mathematical model of the control system. Then we put forward the generalized predictive control algorithm based on the model. The simulation results show that the presented algorithm has a good dynamic response performance, fast-track settings, and a preferable control effect. Experimental results show that the improved methods are reasonable and practicable.

Parameter Setting Based on JGPC Algorithm for Liquid Level Control System

Double-tank water level control system is a nonlinear system in ship. It has long cubage delay and bad anti-jamming ability in ordinary. In order to improve the dependability and security of the lever control system, a improved generalized predictive control (JGPC) algorithm was introduced. We set up a mathematical model of control system with the water tank level control device as the object. Based on the mode, the improved generalized predictive control algorithm was put forward and introduced the parameter setting of JGPC algorithm. The simulation results show that the presented algorithm has a good dynamic response performance, fast-track settings, and a preferable control effect. Experimental results show that the improved methods are reasonable and practicable.

A Servo Control System Based on Fuzzy PI Method for Transverse Flux Machine in Mechanical Press

A control method for servo control system of Assembled Claw Pole Stator Transverse Flux Machine(ACPTFM) by controlling the armature current Root-Mean-Square (RMS) and the angle between armature current and no-load EMF is proposed in this paper. The servo control system of ACPTFM is composed of a series of closed-loop controllers, and the most complexity design of speed controller is described in detail. Fuzzy adaptive PI control method which integrates the advantages of fuzzy control and PI control is adopted to design the speed controller. Experimental results show that it can improve the system dynamic response and steady state accuracy.

Design and Simulation of Fuzzy-PID DC Governor System Based on Mine Hoist

According to the requirement of smooth operation and accurate positioning for DC speed regulating system of mine hoist, a new speed control system that based on double closed-loop of Fuzzy-PID was designed. The best control scheme for mine hoist was also validated by simulation comparison with conventional PID control system in the MATLAB/Simulink. The result showed that the proposal was feasible and had practical value.

Nanowelding Technology Study Based on Simulation Methods

Simulation study on nanowelding technology is important to improve nanowelding parameters, analyze the properties of welded structure, reveal the mechanism of nanowelding. In this paper, the progress of simulation study on nanowelding technology has been reviewed. The key and difficulties of this technology are proposed. The applications of molecular dynamics and quantum mechanics in nanowelding simulation study are introduced. Nanowelding technology is studied by molecular dynamics (MD) method, and the mechanism of ultrasonic nanowelding is revealed.

Design and Simulation of Fuzzy-PID Vector Control System Based on Mine Hoist

According to the requirement of smooth operation and accurate positioning for AC speed regulating system of mine hoist, a new control system that based on vector control of Fuzzy-PID was designed. The best control scheme for mine hoist was obtained, which was also validated by simulation comparison with conventional PID control system in the MATLAB/Simulink. The result showed that the proposal was feasible and had practical value.

The Design and Research of Quantitative Packaging System for Industry Manufactruing Based on PLC

This article designs and realizes a variable-frequency feeding system for quantitative packaging based on PLC. By analyzing diversified factors that affect precision and speed in weighing process, this paper puts forward a hybrid control strategy which combined fuzzy control and traditional PID control. The proposed control system meets the control requirements of high precision in weighing and improves production efficiency. The practical results show that the system possesses a desirable application value in the modern industrial manufacturing.

Simulation Analysis of Vector Control System with Material Properties Based on Mine Fanner Load and Energy Saving

According to the characteristics of mine fanner, the running characteristic and requirements of load was analyzed, and the fanner control system was simulated by using frequency control technology in this thesis. The speed flux double closed loop vector control system was designed by using the principle of the rotor field-oriented vector control and the mathematical model of asynchronous motor. The simulation model was simulated and analysised by MATLAB/Simulink. The result indicated that the vector control system can not only quickly responded to the change of the load torque but also have good speed control performance, and the mine fanner operation requirements was satisfied.

Position Servo Control of the Transverse Flux Machine Based on an Armature Current RMS and Initial Phase Control Method

A control method for position servo control of Transverse flux machine (TFM) by controlling armature current Root-Mean-Square (RMS) and initial phase is proposed in this paper. Specifically, the voltage balance equation of TFM is provided, and the phasor diagrams are analyzed to achieve the expression of electromagnetic power of TFM. The expression indicates that the electromagnetic torque is determined by armature current RMS and the initial phase. A position servo control system of TFM is established based on the expression. The results of the position servo control curves show that the position servo control system of TFM is effective.