矿冶工程
礦冶工程
광야공정
2014年
4期
115-118
,共4页
赵新秋%杨鹤%杨景明%吕金
趙新鞦%楊鶴%楊景明%呂金
조신추%양학%양경명%려금
铝热连轧%张力控制%灰色预测%无模型%自适应控制%GM(1,1)
鋁熱連軋%張力控製%灰色預測%無模型%自適應控製%GM(1,1)
려열련알%장력공제%회색예측%무모형%자괄응공제%GM(1,1)
aluminum hot tandem rolling%tension control%grey prediction%model-free%adaptive control%GM(1,1)
针对重庆某铝加工厂双机架铝带热连轧机机架间张力波动问题，分析了影响张力波动的原因。为提高张力系统的控制精度，对传统PID控制器进行了算法改进，采用无模型自适应算法进行控制器设计，并加入灰色预测模型，通过超前预测来补偿系统延时及参数时变，形成新的控制律作用在被控对象上。仿真结果显示，基于灰色预测的无模型自适应控制在跟踪性、适应性、克服大时滞能力方面与传统的PID控制相比有很大的优越性。
針對重慶某鋁加工廠雙機架鋁帶熱連軋機機架間張力波動問題，分析瞭影響張力波動的原因。為提高張力繫統的控製精度，對傳統PID控製器進行瞭算法改進，採用無模型自適應算法進行控製器設計，併加入灰色預測模型，通過超前預測來補償繫統延時及參數時變，形成新的控製律作用在被控對象上。倣真結果顯示，基于灰色預測的無模型自適應控製在跟蹤性、適應性、剋服大時滯能力方麵與傳統的PID控製相比有很大的優越性。
침대중경모려가공엄쌍궤가려대열련알궤궤가간장력파동문제，분석료영향장력파동적원인。위제고장력계통적공제정도，대전통PID공제기진행료산법개진，채용무모형자괄응산법진행공제기설계，병가입회색예측모형，통과초전예측래보상계통연시급삼수시변，형성신적공제률작용재피공대상상。방진결과현시，기우회색예측적무모형자괄응공제재근종성、괄응성、극복대시체능력방면여전통적PID공제상비유흔대적우월성。
Aimed at tension fluctuation between the standers of aluminum strip hot tandem rolling mill in an aluminum processing factory of Chongqing, analyses were made on the factors causing tension variation. In order to increase the control accuracy of tension system, algorithm was improved for the traditional PID controller, that is, the controller was designed based on model-free adaptive control algorithm, to which grey prediction model was introduced to compensate the time-delay of system and time-varying of parameter by prediction and form new control law acting on the controlled object. Simulation results show that the model-free adaptive control algorithm based on grey prediction has a lot of advantages in term of traceability, adaptability, ability to overcome large delay, compared with traditional PID control.
