华中科技大学学报（自然科学版）2017，Vol.45Issue(3)：29-34,6.DOI:10.13245/j.hust.170305
非零开口的阀控非对称缸系统不变性补偿控制
Compensation control of a non-zero open valve controlled asymmetric cylinder system based on model invariance
摘要
Abstract
For the problem of the inconsistent dynamic property,the linear load flow model of the valve controlling asymmetric cylinder system was developed,including the influence of the non-zero open.Base on the model,the load flow property was analyzed and the basic state of the asymmetric system,which is set to the same structure,was defined.Besides,the control method based on the structure invariance was proposed considering the structure and load effect,and any asymmetric state of the system was equivalent to the basic state through compensation,and then the symmetrical load flow property was obtained.The experimental results show that the error of load flow in servo valve controlled asymmetric cylinder system is less than 11％ compared with the basic state,in linear region of the servo valve and 1/2 of pump pressure of the load.Unified PID (proportion-integration-differentiation) controller can be used in the asymmetric system on the basis of invariant compensation control,and the movements in forward and reverse direction achieve almost the same response.关键词
阀控非对称缸系统/非零开口/负载流量/不变性补偿/响应一致Key words
valve controlled asymmetric cylinder system/non-zero open/load flow/compensation control based on model invariance/consistent response分类
机械制造引用本文复制引用
曾乐,杨俊,谭建平,许文斌..非零开口的阀控非对称缸系统不变性补偿控制[J].华中科技大学学报（自然科学版）,2017,45(3):29-34,6.基金项目
国家重点基础研究发展计划资助项目(2006CB200303,2006CB2003056) （2006CB200303,2006CB2003056）
高性能复杂制造国家重点实验室自主探索基金资助项目(ZZYJKT2016-07) （ZZYJKT2016-07）
湖南省自然科学基金资助项目(2016JJ3088) （2016JJ3088）
湖南省教育厅科学研究项目(16C0017). （16C0017）
