噪声与振动控制2019，Vol.39Issue(2)：32-36,94,6.DOI:10.3969/j.issn.1006-1355.2019.02.006
自由空间中集群式有源噪声控制系统布放对稳定性的影响分析
Analysis of Geometrical Arrangement Influence on the Stability of Cluster Active Control System in Free Space
玉昊昕 1陈克安2
作者信息
- 1. 西北工业大学 航海学院 环境工程系,西安 710072
- 2. 西北工业大学 航海学院 环境工程系,西安 710072
- 折叠
摘要
Abstract
Generally, using fully coupled multichannel active noise control system is beneficial to noise reduction and quiet zone extension, but it is complex and costly. A practical method of decentralizing the control is more economic. In this method, many independent controllers with single input and single output operate simultaneously to replace a large centralized control system with multi-input and multi-output. However, the drawback of the decentralized control is the risk of global instability. The cluster active control system, a modified version of the decentralized system, consists of several independent multichannel sub-systems, which can improve the stability at a reasonable computation consuming. In this paper, the influence of the cluster control arrangement on the global stability of the control system is studied. By transforming the cluster’s iterative equations into the equivalent linear transfer function of the system, the influence of the geometrical arrangement of the secondary sources and error sensors on the zero-pole map of the control system is studied. Theoretical analysis and simulations are carried out and the conditions for ensuring the stability of the clusters system are obtained.关键词
声学/有源噪声控制/集群式系统/系统传递函数/零极点分析Key words
acoustics/ active noise control/ cluster system/ system transfer function/ zero-pole analysis分类
建筑与水利引用本文复制引用
玉昊昕,陈克安..自由空间中集群式有源噪声控制系统布放对稳定性的影响分析[J].噪声与振动控制,2019,39(2):32-36,94,6.
