优化的精度控制自适应调节方案

An Optimized Technology Program of Adaptive Control Based on Input Reference

针对非线性不确定系统,研究并优化了基于输入信号参考自适应PID控制方法——在模型参考自适应PID控制的基础上以输入信号为参考代替模型参考对系统进行控制。控制方法是基于李雅普诺夫平衡点稳定定理控制方法的系统稳定性推演的,由于控制方法中引入稳定项后使控制过程带来微分项,控制方法中加入滤波器,通过系统的自适应调节最终使系统趋于稳定状态。同时,在控制中加入PID因子使系统的控制性能趋佳。该方法是基于输入信号为参考的自适应控制,减少了模型参考带来的误差。仿真推演结果显示,被控对象可以有较强的适应能力,趋于实现更优的过程控制效果。文中给出了运用于海洋钻井设备运动补偿装置实例的分析。

A novel adaptive PID control based on the input signal reference is put for various controllable and uncontrollable non-linear uncertain systems.The methon is proposed to replace the model reference control system as input signal on the base of the model reference adaptive PID control system,which is based on Lyapunov stable equilibrium point theorems.Then control process is introduced the filters for its differential items which is bringed after the introduction of stable items.The system will reach the steady state after its adaptive regulation.At the same time,the control performance of the system can be adjusted when PID control method is introduced and reach the best control effect.The method is based on the input signal as a reference adaptive control which will reduce the error caused by the model,through that we can have the high control accuracy and the control process can be adjusted.The results demostrate that the adaptive PID control has a strong adaptive tracking for various system.