陕西理工学院学报（自然科学版）
陝西理工學院學報（自然科學版）
협서리공학원학보（자연과학판）
Journal of Shaanxi Shaanxi University of Technology(Natural Science Edution)
2015年
5期
20-25
,共6页
徐星星%张春%何慧云%陈林
徐星星%張春%何慧雲%陳林
서성성%장춘%하혜운%진림
网络时延%Smith预估补偿器%一阶惯性滤波环节%自适应
網絡時延%Smith預估補償器%一階慣性濾波環節%自適應
망락시연%Smith예고보상기%일계관성려파배절%자괄응
delay of network control system%Smith predictor%first-order inertial filter%adaptive
在具有网络时延和被控对象自身时延的网络控制系统中,针对传统Smith预估补偿器需要被控对象的精确数学模型,对传统Smith预估补偿器进行改进,提出在预估器主反馈通道上加入一阶惯性滤波环节,用于解决被控对象与预估器模型参数失配问题.同时引入自适应Fuzzy-PID控制器作为系统控制策略,设计了系统结构并进行了仿真研究.仿真结果表明改进后的系统能获得更好的动态性能和适应性能.
在具有網絡時延和被控對象自身時延的網絡控製繫統中,針對傳統Smith預估補償器需要被控對象的精確數學模型,對傳統Smith預估補償器進行改進,提齣在預估器主反饋通道上加入一階慣性濾波環節,用于解決被控對象與預估器模型參數失配問題.同時引入自適應Fuzzy-PID控製器作為繫統控製策略,設計瞭繫統結構併進行瞭倣真研究.倣真結果錶明改進後的繫統能穫得更好的動態性能和適應性能.
재구유망락시연화피공대상자신시연적망락공제계통중,침대전통Smith예고보상기수요피공대상적정학수학모형,대전통Smith예고보상기진행개진,제출재예고기주반궤통도상가입일계관성려파배절,용우해결피공대상여예고기모형삼수실배문제.동시인입자괄응Fuzzy-PID공제기작위계통공제책략,설계료계통결구병진행료방진연구.방진결과표명개진후적계통능획득경호적동태성능화괄응성능.
Traditional Smith predictor must be supported by the precise mathematical model of con-trolled object in the networked control system with delay of network and controlled object.In order to remedy the deficiency, the traditional Smith predictor was improved by adding a first-order inertial filter in the feed-back channel of predictor to solve the issue of parameter mismatch in the controlled object and the predictor.Adaptive Fuzzy-PID controller was used as the system controller.As the simulation results showed, the im-proved controller possesses good dynamic performance and adaptability.
