Tension control method of bond wire winding based on adaptive backstepping sliding mode
LI Changyou
CHEN Fangjing
WANG Geng
WEI Weining
YAN Yonggang
Abstract：In order to solve the problems of strong coupling and tension fluctuation in the tension control mo-tion of bond wire winding,an improved adaptive backstepping sliding mode control algorithm was applied to the winding control system.In this control algorithm,the complex system was decomposed into several simple subsystems.Then the virtual control quantity was introduced from the lowest order system equation.And in combination with sliding mode control definition,virtual control was gradually designed to meet the requirements.Finally,the actual control law of the system was designed.An adaptive algorithm was used to estimate the uncertain parameters,and fuzzy approximation was designed as the switching control item in the sliding mode controller.According to Lyapunov stability theory,the adaptive rate of parameters was de-signed to ensure the stability of the system.By analyzing the data of swing angle fluctuation and response time,adaptive backstepping sliding mode control can improve the stability of the system.Compared with the fuzzy PID control algorithm,with the pendulum angle fluctuation of tension swing rod was controlled in-side±1.4°,the adaptive backstepping sliding mode control was better in controlling tension output more ef-fectively.
Keywords：bonding wiretension controlleradaptive backsteppingsliding-modefuzzy approximation
Publication Date：2023-12-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 103-109 )