二维观瞄仪稳定平台控制系统设计与仿真

作者：杨景照，刘政华 日期：2009-12-30/span> 浏览：3389 查看PDF文档

二维观瞄仪稳定平台控制系统设计与仿真

杨景照，刘政华
（国防科学技术大学 机电工程与自动化学院，湖南 长沙 410073）

摘要：针对二维观瞄仪稳定平台采用由速率陀螺构成的单速度环伺服控制的不足，提出了采用以直流测速机为测量反馈元件构成模拟内环，利用陀螺的“空间测速机”功能组成数字稳定外环的双速度环串级控制结构。设计并实现了速度稳定环的抗摩擦力矩干扰功能和隔离载体扰动功能。建立了系统模型并在Matlab中对控制效果进行了验证。研究结果表明，该方法能够明显减小载体扰动造成的误差，有效地隔离载体扰动，其控制性能良好。
关键词：稳定平台；双速度环；速率陀螺；伺服控制
中图分类号：TP273文献标识码：A文章编号：1001-4551(2009)11-0080-04

Design of control system for two-dimensional observation instrument stabilized platform
YANG Jing-zhao, LIU Zheng-hua
(College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China)
Abstract: For the lack of single rate-loop servo control composed of rate gyro of two-dimensional observation instrument stabilized platform，a dual rate-loop cascade control structure was presented, the DC tachometer was used to constitute the analog inner loop，and the rate gyro was used to constitute the digital outer loop. The functiones of rejecting friction disturbance and insulating carrier turbulence were designed respectively. The system modeling was established and the effect of the control system was validated in Matlab. The experimental results show that the purposed method reaches the system required stability, reduces error and isolates carrier disturbance.
Key words: stabilized platform; dual rate-loop; rate gyro; servo control