化工自动化及仪表
化工自動化及儀錶
화공자동화급의표
CONTROL AND INSTRUMENTS IN CHEMICAL INDUSTRY
2014年
7期
754-757,809
,共5页
李艳辉%张畅%周秀杰
李豔輝%張暢%週秀傑
리염휘%장창%주수걸
非线性时变系统%不确定性%反馈控制%λ-范数
非線性時變繫統%不確定性%反饋控製%λ-範數
비선성시변계통%불학정성%반궤공제%λ-범수
nonlinear time-varying system%uncertainty%feedback control%λ-norm
针对具有不确定性或干扰的重复非线性时变系统,设计一种新的FH( Feedback-assisted High-order)迭代学习控制器。在传统高阶迭代学习控制的基础上,该控制器引入PD控制作为反馈部分,利用反馈控制来抑制扰动对系统的影响,并采用λ-范数方法讨论其算法的收敛性。分析表明:在初态误差和干扰均有界的情况下,系统跟踪误差有界收敛。仿真结果表明了该控制器的有效性。
針對具有不確定性或榦擾的重複非線性時變繫統,設計一種新的FH( Feedback-assisted High-order)迭代學習控製器。在傳統高階迭代學習控製的基礎上,該控製器引入PD控製作為反饋部分,利用反饋控製來抑製擾動對繫統的影響,併採用λ-範數方法討論其算法的收斂性。分析錶明:在初態誤差和榦擾均有界的情況下,繫統跟蹤誤差有界收斂。倣真結果錶明瞭該控製器的有效性。
침대구유불학정성혹간우적중복비선성시변계통,설계일충신적FH( Feedback-assisted High-order)질대학습공제기。재전통고계질대학습공제적기출상,해공제기인입PD공제작위반궤부분,이용반궤공제래억제우동대계통적영향,병채용λ-범수방법토론기산법적수렴성。분석표명:재초태오차화간우균유계적정황하,계통근종오차유계수렴。방진결과표명료해공제기적유효성。
Aiming at repetitive nonlinear time-varying system with uncertainty and disturbance , a new FH ( feed-back-assisted high-order)iterative learning controller was designed .Basing on traditional high-order iterative learn-ing control, the proposed controller employs PD control as feedback part and then uses the feedback part to suppress disturbance influence on the system , and havingλ-norm introduced to discuss algorithm convergence .Analysis re-sults show that the tracking error of controlled system has bounded convergence while the initial error and disturb-ance are bounded .The simulation results prove the proposed learning controller ’ s effectiveness .