内模结构的汽车排气噪声有源控制研究及仿真  

Research and Simulation on Active Noise Control of Vehicle Exhaust Based on IMC

作　　者：王懿喆[1] 吴伟蔚[1] 

机构地区：[1]上海工程技术大学,上海201620

出　　处：《计算机仿真》2013年第7期156-159,169,共5页Computer Simulation

摘　　要：研究了基于内模反馈结构的汽车排气噪声有源控制方法,使用Shann。n-Bode方法和RLS自适应逆建模方法建立了次级通道的逆模型,并分析控制系统的鲁棒稳定性和鲁棒性能。针对模型误差对控制性能的影响提出一种基于粒子群优化算法调整反馈滤波器参数的控制方法。在Matlab/Simulink中搭建了次级通道RLS自适应逆建模模型和汽车排气噪声有源控制模型,仿真结果表明使用粒子群优化算法对反馈滤波器参数进行在线调整的内模控制方法能够进一步提高汽车排气噪声有源控制的效果。A control method of active noise control of vehicle exhaust based on internal model control structure was researched.The inverse model of the secondary path was modeled using Shannon-Bode method and RLS adaptive inverse modeling method,and the robust stability and robust character of the control system were analysed.A method based on PSO algorithm was proposed to modify the parameter of feedback filter against the modeling error.The adaptive inverse modeling model and active noise control model of vehicle exhaust were set up with Matlab/Simulink,and the simulation result indicates that the internal control method can further improve the control effect against the noise of vehicle exhaust.

关 键 词：内模控制 香农伯德方法 自适应逆建模 粒子群优化 噪声有源控制 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]