变压力机载液压泵源的自适应控制研究  

Study on Adaptive Control of Airborne Variable Output Pressure Hydraulic Power System

作　　者：王世富[1] 马俊功[1] 王占林[1] 

机构地区：[1]北京航空航天大学,北京100083

出　　处：《中国机械工程》2007年第7期785-789,共5页China Mechanical Engineering

摘　　要：基于增广误差稳定性理论,为机载变压力液压泵源系统设计了模型参考自适应系统控制器,减小了控制系统中因模型软参量取值不准确且难以在线检测而对系统静态性能、动态性能造成的影响,使系统能够适应软参量,包括液压油综合体积弹性模量、系统被控高压腔容积和泄漏系数的数值变化,输出压力能够稳定、较准确地跟踪给定的参考输入。系统的仿真和实验结果均证明了这一控制方法的有效性。A model reference adaptive system （MRAS） controller was designed for airborne variable pressure hydraulic power system based on augmented error stability theory, and the bad effect of inaccurate system parameter evaluation without parameter online measurement on system＇s steady or dynamics performance was reduced. The system is thus adapted to the value variance of soft parameters, including comprehensive bulk elastic modulus, bulk of system controlled high pressure cavity and leakage coefficient, and the system output pressure is able to follow the reference input stably and more accurately. The adaptability of the mentioned control strategy to the system is verified by the results of associated simulations and experiments.

关 键 词：液压泵源 系统软参量 增广误差 模型参考自适应系统 

分 类 号：TH137[机械工程—机械制造及自动化]