免疫NPID控制器及其在热磨机料位控制系统的应用  

Immune Nonlinear PID Controller and Its Application to Material Level Control of Heat Milling System

作　　者：任重昕[1] 王伟[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2012年第4期120-123,共4页Journal of Northeast Forestry University

摘　　要：借鉴生物免疫系统反馈调节机理,将免疫控制器与传统PID控制器串联,提出了一种免疫非线性PID控制方法;应用波波夫稳定判据分析了免疫非线性PID控制器的稳定性,并将其应用到热磨机的料位控制系统。这一算法保证了闭环系统的稳定性和快速的跟随性能,又抑制了模型摄动及外部干扰对系统的影响,提高了系统响应的快速性,保证了系统的鲁棒性能。仿真研究进一步验证了免疫非线性PID控制方法的可行性和有效性。Based on the fusion of immune feedback mechanism for the conventional PID control technique,a new immune nonlinear PID controller was proposed by connecting immune controller and traditional PID controller in series.The stability of immune nonlinear PID was analyzed using Popov stability criterion.The new immune nonlinear PID controller was applied to the material level control system of defibrator.The designed controller could not only guarantee the stability and tracking performance of the system but also inhibit the influence of external disturbance and perturbance on the system,which improve the fast tracking performance and robustness of the system.The numerical simulation results verified the effectiveness and feasibility of the immune nonlinear PID.

关 键 词：免疫非线性PID 免疫机理 波波夫判据 稳定性分析 料位控制 

分 类 号：TP391.8[自动化与计算机技术—计算机应用技术]