控制工程
控製工程
공제공정
CONTROL ENGINEERING OF CHINA
2009年
6期
717-719,786
,共4页
陈文楷%石英%崔刚%范艳峰
陳文楷%石英%崔剛%範豔峰
진문해%석영%최강%범염봉
柔性机械臂%模糊神经控制%最优控制%PD控制%变负载
柔性機械臂%模糊神經控製%最優控製%PD控製%變負載
유성궤계비%모호신경공제%최우공제%PD공제%변부재
flexible manipulator%fuzzy-neural control%optimal control%PD control%load varying
基于奇异摄动将单连杆柔性机械臂动力学模型分解为慢、快变子系统,传统方法分别采用PD控制和最优控制能取得较好控制效果,但负载不确定时,控制效果并不理想.提出对于慢变子系统,采用模糊神经、PD控制相结合的控制方法,对于快变子系统,采用模糊神经、最优控制相结合的控制方法.当负载变化时,采用模糊神经控制器根据实际负载对PD参数及最优控制参数进行调整,达到更优的控制效果.分别采用传统方法及本文提出的改进方法在变负载条件下作了仿真实验,结果表明后者的控制效果明显优于前者.给出了慢、快变子系统模糊神经控制器在变负载条件下训练参数的获取方法.
基于奇異攝動將單連桿柔性機械臂動力學模型分解為慢、快變子繫統,傳統方法分彆採用PD控製和最優控製能取得較好控製效果,但負載不確定時,控製效果併不理想.提齣對于慢變子繫統,採用模糊神經、PD控製相結閤的控製方法,對于快變子繫統,採用模糊神經、最優控製相結閤的控製方法.噹負載變化時,採用模糊神經控製器根據實際負載對PD參數及最優控製參數進行調整,達到更優的控製效果.分彆採用傳統方法及本文提齣的改進方法在變負載條件下作瞭倣真實驗,結果錶明後者的控製效果明顯優于前者.給齣瞭慢、快變子繫統模糊神經控製器在變負載條件下訓練參數的穫取方法.
기우기이섭동장단련간유성궤계비동역학모형분해위만、쾌변자계통,전통방법분별채용PD공제화최우공제능취득교호공제효과,단부재불학정시,공제효과병불이상.제출대우만변자계통,채용모호신경、PD공제상결합적공제방법,대우쾌변자계통,채용모호신경、최우공제상결합적공제방법.당부재변화시,채용모호신경공제기근거실제부재대PD삼수급최우공제삼수진행조정,체도경우적공제효과.분별채용전통방법급본문제출적개진방법재변부재조건하작료방진실험,결과표명후자적공제효과명현우우전자.급출료만、쾌변자계통모호신경공제기재변부재조건하훈련삼수적획취방법.
Based on the singular perturbation approach,the one-link flexible manipulator is decomposed into a slow subsystem and a fast subsystem. The PD control and the optimal control are used in the teaditional method. But the effect is not good when the load varying. A fuzzy-neural and PD controller is designed for the slow subsystem,and a fuzzy-neural and optimal controller is designed to stabilize the fast subsystem. The PD parameter and the optimum controller parameter are adjusted using the fuzzy-neural controller by the varying load,achieving the more superior effect. The simulation results show that the latter surpasses the former. The method of how to obtain training parameter when load varying is given.