摘要
伺服控制是光电稳定平台的关键技术之一。提高控制刚度能够增强隔离载体扰动的效果,但同时可能导致系统不稳定。论文结合理论和试验建立了光电稳定伺服控制系统的简化数学模型,推导出系统控制刚度表达式,指出提高控制刚度的方法;利用劳斯判据求解出系统稳定的解析条件式,描述了稳定性与控制刚度之间的矛盾,并指出陀螺是矛盾关键。论文研究结论得到了仿真和试验验证,对工程实践具有参考价值。
Servo control is one of the key technologies of the photoelectric stabilized platform. Improving the control rigidity may strengthen the isolation effect, but may result in system instability at the same time. Based on the theory and experiments, the paper builds up the simplified mathematical model of the servo control system, deduces the system control rigidity expression, and points out the method to improve control rigidity. According to Routh stability criterion, the analytic stability condition is solved, which shows the conflict between the stability and control rigidity and that gyroscope is the key factor of the conflict. The results are validated by simulations and experiments, which may provide the reference for engineering application.
出处
《光电工程》
CAS
CSCD
北大核心
2009年第8期5-9,共5页
Opto-Electronic Engineering
基金
2007博士后基金资助项目(20070420835)
关键词
光电平台
伺服控制
陀螺
稳定性
电流环
photoelectric platform
servo control
gyroscope
stability
current loop
