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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.

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.

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.

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.

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.