基于模糊控制器的热相移辅助超流体陀螺研究  

Research on Superfluid Gyroscope Aided by Heat Phase Shift Based on Fuzzy-PID

作　　者：聂威[1] 赵伟[1] 郑睿[1] 刘建业[1] 

机构地区：[1]南京航空航天大学导航研究中心,南京210016

出　　处：《航天控制》2014年第1期21-25,29,共6页Aerospace Control

基　　金：国家自然科学基金(61074162);教育部博士点基金(200802870011)

摘　　要：基于热相移辅助的超流体陀螺理论上的测量灵敏度能达到10-7rad/s,具有发展为高精度陀螺的潜力。但由于热相移注入过程中存在一定惯性,会使得超流体陀螺的测量精度急剧下降。为消除热相位注入惯性给系统带来的影响,本文提出了基于Fuzzy-PID的智能控制方案,该方案能针对大惯性产生的温度失调进行抑制,具有鲁棒性好、精确度高和不需要对对象精确建模等优点。本文根据该系统特性设计了超流体陀螺热相移模糊控制器,且通过仿真验证表明本文设计的Fuzzy-PID控制器有效减小了热相位注入惯性对超流体陀螺测量精度的影响。The accuracy of superfluid gyroscope aided by heat phase shift can be reached 10-7rad/s,which has the potential of developing high-precision gyro.But the inertia existed in the heat phase shift injection process leads to the accuracy of superfluid gyroscope dramatically reduced.In this paper,an intelligent control scheme known as Fuzzy-PID is applied to eliminate the influence which brought by heat phase shift injection process.The method can inhibit the offset of temperature for large inertia and has many advantages,such as good robustness,high precision and needless precise modeling.The proposed controller based on Fuzzy-PID in this paper is designed.The simulation shows that the controller can reduce the impact on measure accuracy of superfluid-gyro which results from the process of the heat phase shift injection effectively.

关 键 词：超流体陀螺 模糊控制器 热相移 

分 类 号：V241.5[航空宇航科学与技术—飞行器设计] U666.1[交通运输工程—船舶及航道工程]