沥青碳纤维恒升温速率云智能控制仿真研究  

Constant Heating Rate Cloud Intelligent Control Simulation Applied in Asphalt Carbon Fiber Spinning

作　　者：刘彬[1,2] 周敏[1] 张奥扬[3] 

机构地区：[1]太原工业学院自动化系,山西太原030008 [2]太原理工大学机械电子工程研究所,山西太原030024 [3]浙江大学电气工程学院,浙江杭州310058

出　　处：《中北大学学报（自然科学版）》2013年第3期260-264,共5页Journal of North University of China(Natural Science Edition)

基　　金：山西省自然科学基金资助项目(2012011046-10)

摘　　要：沥青碳纤维升温过程受比热容及散热环境影响,具有非线性,大时滞的特点.为实现对该系统升温速率的恒定控制,保证沥青碳纤维物料特性,提出一种新型二维云智能控制算法.该算法基于云模型控制规则的不确定性推理,用期望值Ex、熵En和超熵He表征定性概念,充分考虑系统的模糊性和随机性,建立了以温度变化率和温度作为主要参数的二维云控制模型.通过升温速度控制规则和温度控制规则得到相应云滴,软与后得到控制输出.仿真结果表明,该控制器能够在20s内将温度变化率控制在士0.005℃/s的范围之内,并能够消除传统PID控制中无法解决的积累误差问题.Asphalt carbon fiber heating process had nonlinear, long time delay characteristics when it was influenced by specific heat and thermal environment. For implementing constant heating rate control of the system, ensuring pitch carbon fiber material characteristics, a new type of two-dimensional cloud intelligent control algorithm was proposed. Presenting the uncertainty reasoning of control rules based on cloud model, representing a qualitative concept with expected value Ex, entropy E,and hyper entropy He, fully considering the fuzziness and randomness in the system, the algorithm established 2-D cloud model of the control with the temperature rate and temperature as main parameters. After getting two cloud droplets by using heating rate control and temperature control rules, control output was got through soft and. Simulation resuhs show that the controller can control the heating rate in 20 seconds within the range of ＋0. 005 C/s, and can solve the problem of accumulated error which traditional PID controller can＇t eliminate.

关 键 词：沥青碳纤维 升温速率 云理论 数学建模 智能控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]