摘要
飞行姿态仿真转台用电液位置伺服系统的负载惯量在大范围内变化，要使其在相当多的情况下具有满意的动态性能是比较困难的．本文设计了一种滑模变结构控制器来解决这一控制难题，用极点配置法设计切换函数以保证滑动模态具有良好的动态特性，并进行了计算机仿真研究。研究结果表明：变结构控制能够有效地克服系统变参数的影响，可以取得较高的伺服跟踪精度，使系统具有较强的鲁棒性和良好的动态性能．
The load inertia of electrohydraulic position servo system used in flying posture simulator varys in a large range, so it is difficult to make the system have a good dynamic characteristics. In this paper, an approach using sliding mode variable structure control is pasented for the system to solve this ploblem, and the switching function is designed with pole displacement to ensure the sliding mode have a good dynamic characteristics. Simulation results show that the proposed approach may give rather accurate servo tracking result and is fairly robust to the system parameter variation and have a good dynamic characteristics.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
1995年第2期101-105,共5页
Journal of Harbin Institute of Technology
关键词
电液伺服系统
变结构控制
极点配置
伺服系统
Electrohydraulic servo system
variable structure control
pole displacment
