Lithium battery pole piece rolling mill tension control method and detection system

Abstract

The invention relates to a lithium battery pole piece rolling mill tension control method and detection system. The lithium battery pole piece rolling mill tension control method comprises the steps that real-time tension data of a tension sensor in a production line of a lithium battery pole piece rolling mill are collected by taking the tension effect of deviation correction parameters in the lithium battery pole piece rolling mill on a pole piece belt as a research; a deviation threshold value omega is set, a real-time deviation value epsilon is obtained according to the real-time tension data and a tension preset value, when the real-time deviation value epsilon is larger than the set deviation threshold value omega, an integration link in PID control is eliminated, a PD controller is started, and when the deviation value epsilon is smaller than or equal to the set deviation threshold value omega, the integration link is introduced again to complete the PID controller; and when the PID controller is started, a fuzzy controller is introduced to adjust three parameters KP, KI and KD of the PID controller in real time, a controlled object is controlled through the PID controller parameters corrected by the fuzzy controller, and the precision and the anti-interference capability of the tension closed-loop feedback control link of the lithium electric rolling mill are improved.

Description

technical field [0001] The invention relates to the field of tension detection and control systems, in particular to a tension control method and a detection system for a lithium battery pole piece rolling mill. Background technique [0002] The lithium battery pole piece rolling mill is composed of an unwinding mechanism, a rolling mechanism and a winding mechanism. In the rolling and unwinding process of the rolling mill, the tension and stability of the pole piece strip are crucial technological indicators. It is caused by the difference between the line speed of the main roll of the pole piece rolling mill and the line speed of the winding air expansion shaft. Tension detection uses a tension sensor, the output is an analog signal, and there are some interference signals, which need to be eliminated through hardware circuit design. [0003] The tension control of unwinding and rewinding strip adopts high-precision sensors and controllers to complete the adjustment and ...

AI Technical Summary

Problems solved by technology

The detection system improves the compatibility of pole piece rolling mill tension detection and the system's anti-interference ability, and solves problems such as circuit redundancy.

Images