机构地区: 北京航天控制仪器研究所
出 处: 《导航与控制》 2015年第4期69-72,68,共5页
摘 要: 针对多参数仪器的非线性高精度大动态控制问题,提出对电机力矩脉动、摩擦扰动及其他未建模干扰等非线性因素,用两个独立的模糊自调谐回路进行自适应抑制衰减的方案,并进行了理论分析和建模仿真,表明该方案在宽速率范围内以及高动态仿真情况下,幅值误差小于5%,相位误差小于5°,并可在大动态宽速率范围内进行自适应调整,因此可改善多参数仪器在非线性复杂扰动情况下的工作性能。 To aim at improving the existing non-linear high precision and dynamic control problem of multi-parameter instrument,a fuzzy self-adjusting sliding-mode control scheme is proposed,two fuzzy self-adjusting loop module is use to specially suppress the toque friction and un-modeled disturbances.The scheme is theoretically analyzed and simulated,which shows that it can do self-adjustment under wide velocity range and high dynamics,so that it’s helpful in improving the performance while working in multi-disturbances condition.