摘要
研究μ理论在电液负载模拟器中的应用,提出电液负载模拟器的鲁棒控制策略。电液负载模拟器是一个复杂的机-电-液复合系统,且是一个强耦合、时变受控对象。综合考虑参数变化、模型变动和干扰等不确定性的影响,利用μ综合控制理论设计电液负载模拟器的鲁棒力控制器,并通过μ分析使用鲁棒力控制器时系统的鲁棒稳定性和鲁棒性能。给出使用鲁棒力控制器和经典力控制器时的实验结果,实验结果表明所设计鲁棒力控制器的有效性和优越性。
Application of μ theory in the electrohydraulic load simulator is studied. Robust control strategy of the electrohydraulic load simulator is put forward. The electrohydraulic load simulator is a complicated mechanical-electronic-hydraulic compound system,moreover it is a strong coupling and time-varying controlled object. Synthetically considering uncertainties such as parameter perturbations, model perturbations and external disturbances etc., a robust force controller of the electrohydraulic load simulator is designed using μsynthesis theory. The robust stability and robust performance are analyzed by μ values of the system in which the robust force controller is used. Moreover, experiment results of systems using robust force controller and classical force con- trollers are shown. The results indicate the efficiency and superiority of the designed robust force controller.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2007年第1期228-233,共6页
Acta Aeronautica et Astronautica Sinica
基金
国防预研基金
关键词
电液负载模拟器
Μ综合
Μ分析
鲁棒
不确定性
electrohydraulic load simulator
μ synthesis
μ analysis
robust
uncertainty
