摘要
某惯性设备随动系统刚度偏低,控制精度较差,同时在使用过程中常会由于系统的个性差异导致系统稳定性变差,直接影响系统的使用。为此对控制系统进行了数学建模,用Matlab对系统进行了仿真和幅频/相频特性的分析,对系统进行了改进设计,大大提高了系统刚度和控制精度;并通过大量的仿真、实验和数据分析,对实际工作中由于系统个性差异引起的系统稳定性变差、稳定时间变长等问题提出了切实可行的解决方法。试验结果表明:系统的精度由原来的1.2°提高到0.3°,超调量由原来的50%降低到30%,满足总体性能要求。
An inertia equipment is in use, but in practical system, it＇s stiffness and controlling precision is a bit low, and there are some problems such as reduced stabilization because of different system personality, work circumstance and load factors etc. In this paper, a mathematic model was established for the control system. Then, by using Matlab, the system＇s simulation analysis was made on the range-frequency and angle-frequency＇s characteristics. A solution to improve the controlling precision, long-term stability and temporary response was put forward. The experiment results show that system precision is raised from 0.3° to 1.2°, and the overshoot is reduced from 50% to 30%, meeting the overall performance demand.
出处
《中国惯性技术学报》
EI
CSCD
北大核心
2013年第4期435-438,445,共5页
Journal of Chinese Inertial Technology
基金
国防科研预研重点项目(51309010101)
关键词
惯性设备
随动系统
幅频
相频特性
稳定性
暂态响应
inertial equipment
following system
the range-frequency and angle-frequency＇s characteristics
stabilization
temporary feature
