Intelligent switching control method based on bin weights and implemented in raw material feeding procedures and control system for intelligent switching control method

Abstract

The invention provides an intelligent switching control method based on bin weights and implemented in raw material feeding procedures and a control system for the intelligent switching control method. The intelligent switching control method based on the bin weights and implemented in the raw material feeding procedures is implemented on the basis of the control system. The control system comprises a PI (proportion and integration) controller, a fuzzy controller, a feed-forward controller and a switching selector, the three controllers output frequency regulation signals, and the switching selector is switched selectively between the PI controller running in a PI control mode and the fuzzy controller running in a fuzzy control mode according to switching rules by the switching selector. The intelligent switching control method and the control system have the advantages that full-coverage automatic intelligent control for link of two regions which are respectively within a specified technical range and outside the specified technical range is implemented by the aid of a control model of the PI controller, a control model of the fuzzy controller and the switching rules for selective switching between the PI controller and the fuzzy controller, so that normal and smooth running states of the raw material feeding procedures are constantly guaranteed.

Description

technical field [0001] The patent application of the present invention relates to the electromechanical automatic control system and control method, especially to the rotary feeding frequency converter that controls the raw material feeding system, so that the raw material can be stably and smoothly fed from the homogenization storehouse to the raw material bin and outward. Intelligent automatic control system and its control method. Background technique [0002] The raw material bin is the key material supply equipment on the raw material supply line. The homogenized raw meal in the homogenization storehouse is lowered by the rotary feeders at each outlet to the air chute, the raw meal is lifted by the lifting bucket, and sent into the raw meal bin, and the raw meal is unloaded from the raw meal bin, and the homogenization is completed. Chemical raw material supply. In the entire material supply line, it is necessary to well control the discharge flow of the homogenizatio...

AI Technical Summary

Problems solved by technology

Although the PID control method is easy to implement, there are many technical problems. First, the control method does not establish a mathematical control model for the raw material bin weight, so the deviation between the raw material bin weight setting value and the actual bin weight value is in a small range. The control is suitable for fluctuations, and more operators need to use years of practical experience to adjust the gain ratio by trial and error and integration time , through the trial and error method, the weight of the raw material bin is controlled so that the deviation between the set value of the raw material bin weight and the actual weight value of the raw material bin is within the required range

Since the technical core part of the existing trial and error PID control method involves more human factors, it cannot accurately and effectively complete the control purpose

When there is a large deviation between the actual value of the raw material silo and the set value, this PID control system cannot make the raw material silo re-track the reset value of the raw material silo in a timely and fast manner, and the raw material silo is often "full". " or " short position " phenomenon

Therefore, the existing control method has a low degree of control automation in practice, and the control effect is not obvious.

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