標題: Plant uncertainty analysis in a duct active noise control problem by using the H-infinity theory
作者: Bai, MR
Lin, HH
機械工程學系
Department of Mechanical Engineering
公開日期: 1-七月-1998
摘要: Plant uncertainty is one of the major contributing factors that could affect the performance as well as stability of active noise control (ANC) systems. Plant uncertainty may be caused by either the errors in modeling, computation, and measurement, or the perturbations in physical conditions. These factors lead to deviations of the plant from the nominal model, which will in turn affect the robustness of the control system. In this paper, the effects due to changes in physical conditions on the ANC system are investigated. The analysis is carried out in terms of performance and robustness by using a general framework of the H-infinity robust control theory. The size of plant uncertainty is estimated according to the infinity norm of the perturbations to physical conditions, which provides useful information for subsequent controller design that accommodates both performance and stability in an optimal and robust manner. The guidelines for designing the ANC systems with reference to plant uncertainties are also addressed. (C) 1998 Acoustical Society of America. [S0001-4966(98)02007-4].
URI: http://dx.doi.org/10.1121/1.423274
http://hdl.handle.net/11536/32544
ISSN: 0001-4966
DOI: 10.1121/1.423274
期刊: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume: 104
Issue: 1
起始頁: 237
結束頁: 247
顯示於類別:期刊論文