中国机械工程2017，Vol.28Issue(17)：2056-2061,2068,7.DOI:10.3969/j.issn.1004-132X.2017.17.007
电液位置伺服系统的频域设限加权切换控制
Finite Frequency Domain Weighting Switching Control of an Electro-hydraulic Position Control System
摘要
Abstract
The mechanism of the double-order state feedback (DOSF)control system that had static errors was analyzed.A three-order state feedback (TOSF)controller without static errors was designed.To overcome the high order of TOSF control systems,a finite frequency domain weighting switching algorithm was adopted to realize TOSF-DOSF dual-controller switching control.The algo-rithm might reduce the sensitivity of control action on weighting coefficient changing.Simulations show that the static errors of electro-hydraulic position servo DOSF control system are positive corre-lation with load elastic stiffnesses and TOSF control system may eliminate static errors in conformity with dynamic performances.Experiments show that the system with TOSF-DOSF dual-controller fi-nite frequency domain weighting switching control has good dynamic and static performances.It has smaller switching impacts compared with threshold switching.关键词
电液位置伺服/状态反馈/静差/切换频域设限Key words
electro-hydraulic position servo/state feedback/static error/switching in finite fre-quency domain分类
机械制造引用本文复制引用
陈刚,曹赛,王益群,赵团民..电液位置伺服系统的频域设限加权切换控制[J].中国机械工程,2017,28(17):2056-2061,2068,7.基金项目
国家自然科学基金资助项目(51305389) （51305389）
国家冷轧板带装备及工艺工程技术研究中心开放课题(005004) （005004）
国家智能制造专项(发改办高技[2014]2558) （发改办高技[2014]2558）
河北省高等学校创新团队领军人才培育计划资助项目(LJRC013) （LJRC013）
