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Design of incomplete derivative fuzzy PID control system for fast-steering mirror

机译:快速转向镜的不完全微分模糊PID控制系统设计

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The structure parameters of fast-steering mirror (FSM) might change with time goes by. In order to reduce the impact of this change on the output performance of FSM system, an incomplete derivative fuzzy PID control system is proposed. This control system can effectively improve the time domain quality of FSM system by optimizing the PID control parameters online. First, the dynamic model of FSM is established. Second, the initial parameters of the incomplete derivative PID control system are designed according to the frequency domain quality of the closed-loop system. Then, the rules and related factors of the fuzzy controller are designed on the basis of the initial parameters. Finally, simulation experiments are carried out. The results show that the incomplete derivative PID control system has shorter adjustment time, less overshoot and lower dependence on the parameters of FSM when compared with the fixed parameters PID control system.
机译:快速转向镜(FSM)的结构参数可能会随着时间的流逝而变化。为了减少这种变化对FSM系统输出性能的影响,提出了一种不完备的微分模糊PID控制系统。通过在线优化PID控制参数,该控制系统可以有效地改善FSM系统的时域质量。首先,建立了FSM的动态模型。其次,根据闭环系统的频域质量设计不完全微分PID控制系统的初始参数。然后,基于初始参数设计模糊控制器的规则和相关因素。最后,进行了仿真实验。结果表明,与固定参数PID控制系统相比,不完全微分PID控制系统的调整时间更短,超调量更少,对FSM参数的依赖性更低。

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