应用模糊PID自修正的电镀槽液温度控制方法  

A temperature control method for electroplating bath solution using fuzzy PID self correction

作　　者：王臻卓[1] 周方 巴文兰 Wang Zhenzhuo;Zhou Fang;Ba Wenlan(Department of Automation Engineering,Henan Polytechnic Institute,Nanyang 473000,China;Department of Manufacturing Engineering,Nanyang Technical College,Nanyang 473000,China;School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou 471000,China)

机构地区：[1]河南工业职业技术学院自动化工程学院,河南南阳473000 [2]南阳技师学院制造工程系,河南南阳473000 [3]河南工业大学机电工程学院,河南郑州471000

出　　处：《电镀与精饰》2024年第5期77-84,共8页Plating & Finishing

基　　金：国家自然科学基金(61502148)。

摘　　要：电镀槽液温度自动控制过程属于典型的混沌过程,在温度采集的过程中存在明显的非线性波动。典型的比例-积分-微分(PID)控制算法在这种混沌特性与非线性特性干扰下,存在控制精度较低、稳定性和鲁棒性较差等问题。此外,为解决非线性问题,PID算法需要循环迭代计算,存在控制时滞问题。以模糊控制为基础,提出了基于模糊PID的电镀槽液温度自动控制方法。该方法先设计温度数据采集结构,并将移动平均滤波、温度修正算法引入到采用的数据采集结构中,完成电镀槽液的实时温度数据采集。然后将采集到的温度数据作为构建的模糊PID控制器的输入。利用模糊控制规则引入修正因子,实现电镀槽液温度的自动控制。考虑到电镀槽液的时滞特性,在控制器中加入粗糙预估参考模型,对该特性加以抑制,提升控制性能。最后应用实验证明了所提方法的先进性。实验结果表明:所提方法具有较高的控制精度和效率,能够有效降低超调量和波动,应用效果较好。The automatic temperature control process of electroplating bath is a typical chaotic process,and there are obvious nonlinear fluctuations in the process of temperature acquisition.Under the interference of chaotic and nonlinear characteristics,the typical PID control algorithm leads to problems such as low control accuracy,poor stability and robustness.In addition,in order to solve the nonlinear problem,the PID algorithm needs cyclic iterative calculation,which has the problem of control time delay.Based on fuzzy control,an automatic control method of electroplating bath temperature based on fuzzy PID is proposed.The method designs the temperature data acquisition structure,then integrates moving average filtering and temperature correction algorithm into it for real-time temperature data acquisition of electroplating bath solution.Then the collected temperature data is used as the input of the fuzzy PID controller.Using fuzzy control rules and introducing correction factors,the automatic control of electroplating bath temperature is realized.Considering the time-delay characteristics of electroplating bath,the rough prediction reference model is added to the controller to suppress the characteristics and improve the control performance.Finally,the experimental results show that the proposed method is advanced.The experimental results demonstrate that the proposed method exhibits high precision and efficiency in control,effectively reducing overshooting and fluctuations,and yielding positive results in application.

关 键 词：模糊控制 PID算法 修正因子 虚拟仪器温度检测 时滞特性抑制 

分 类 号：TQ153[化学工程—电化学工业]