【摘要】 针对火箭炮位置伺服系统中的机电耦合特性,提出了一种自适应模糊滑模控制方法。为了使滑模变结构等效控制律设计不依赖对象的精确模型,利用切换函数及其变化率设计自适应模糊系统来代替等效控制,为了抑制滑模抖振,采用模糊规则调节切换控制的增益。仿真及实验结果表明,该方法不仅保证了系统的静、动态特性,有效降低了变结构系统中固有的抖振现象,而且对参数摄动具有较强的鲁棒性。研究结果为进一步完善控制器理论结构及实践应用提供了参考依据。更多还原

【Abstract】 An adaptive fuzzy sliding mode control approach is proposed for electromechanical coupling property of a rocket position servo system.The equivalent controller is substituted by an adaptive fuzzy system based on the switching function and its change rate,so that the sliding mode control law is not dependent on accurate mathematical model,and the switch gain is adjusted by the fuzzy rules to reduce chattering.Both simulation analysis and experimental results show that the proposed approach can guarantee the static and dynamic performance,reduces chattering induced by variable structure control,and possesses a strong robustness to parameters perturbation.The results can provide a reference for improving the theoretical structure and practical application of controllers.更多还原