稳定回路智能分区PID控制方案研究

Study on intelligent partitioning PID control scheme for stabilization loop

目前工程上普遍采用经典PID控制方法对稳定回路进行控制。但是,由于非线性因素的存在,实际产品往往高频去耦指标较差。以某型系统结构为研究对象,不基于模型的辨识,在模糊PID的基础上,提出并设计了一种智能分区PID控制方案。通过Simulink仿真验证,与传统PID控制方法相比,智能分区PID控制方案对稳定回路的动态特性有明显的改善,对齿隙等非线性因素有很好的抑制能力。

Currently,classical PID control appoach is used generally to control the stabilization loop. However,due to the nonlinear factors,the actual products often have poor decoupling index in high frequency. Taking a certain system architecture as the research object in this paper,an intelligent partitioning PID control scheme is proposed and designed according to fuzzy PID control theory. The result of Simulink simulation indicates that,in comparison with the traditional PID control method,the intelligent partitioning PID control scheme can improve the dynamic characteristics of stabilization loop more obviously,and has better ability to inhibit the nonlinear factors.