A vibratory Separator is a kind of high-precision screening equipment, and its application industry is also quite extensive. However, in the use of a vibrating screen, there will often be voltage instability and low accuracy.
The fuzzy PID compound control of vibratory separator is a method that combines fuzzy control technology with conventional PID control algorithm.
An improved control method is proposed, which is mainly because the fuzzy controller itself to eliminate the system steady-state error performance of the shaker device is poor, it is difficult to achieve a higher control precision. The integral adjustment function of PID controller can theoretically control the steady-state error of the system to zero, which has a good effect on eliminating the error. Fuzzy control and PID controller are used to improve the steady-state performance of the system.
The precision and tracking performance of rotary screen fuzzy controller require more language values for language variables. However, small classifier and good performance, but also to the control system of the system have brought more shortcomings, making debugging more difficult, so the real-time control system is difficult to meet the requirements. The vibratory separator points control device adopts different control methods, in different control domains to achieve points control, according to switching logic to choose one of them, that is, fuzzy control within the range of large deviation, PID control within the range of small deviation, that is, to achieve a switching function.
Although the switching mode PID hybrid architecture has certain adaptability to complex systems, the choice of switching logic directly affects the control performance of the gyro shaker equipment system. Nevertheless, how to achieve smooth switching, reduce disturbance and oscillation, and ensure the stability of the system has always been an unsolved problem.
The space vector in the pulse-width modulated gyro screen has a sinusoidal space distribution at every fixed position and is a sinusoidal space vector varying with time. Thus, the problem of circular magnetic field can be transformed into the problem of voltage space vector control. In practice, the voltage space vector pulse-width modulation of the shaker corresponds to the switching trigger sequence and pulse-width combination of PMSM in the three-phase voltage source inverter. The control method can produce sinusoidal current with waveform distortion difference up to 120 in a specific coil. The HENAN EXCELLENT MACHINERY CO., LTD is a professional bulk material conveying equipment manufacturer. We have a professional production capacity and rich production experience as well as strict product quality inspection. We can guarantee that every piece of equipment we produced is qualified equipment, and we ensure the qualified rate of the products. To know more about our products, please visit our official website: https://www.exctmach.com/
