Please use this identifier to cite or link to this item:
|Title:||Frequency domain approach to computing loop phase margins of multivariable systems|
|Citation:||Ye, Z., Wang, Q.-G., Hang, C.C. (2008-07-02). Frequency domain approach to computing loop phase margins of multivariable systems. Industrial and Engineering Chemistry Research 47 (13) : 4418-4424. ScholarBank@NUS Repository. https://doi.org/10.1021/ie701693j|
|Abstract:||The loop phase margins of multivariable control systems are defined as the allowable individual loop phase perturbations within which stability of the closed-loop system is guaranteed. This paper presents a frequency domain approach to accurately computing these phase margins for multivariable systems. With the help of unitary mapping between two complex vector space, the MIMO phase margin problem is converted using the Nyquist stability analysis to the problem of some simple constrained optimization, which is then solved numerically with the Lagrange multiplier and Newton-Raphson iteration algorithm. The proposed approach can provide exact margins and thus improves the linear matrix inequalities (LMI) results reported before, which could be conservative. © 2008 American Chemical Society.|
|Source Title:||Industrial and Engineering Chemistry Research|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 14, 2019
WEB OF SCIENCETM
checked on Feb 5, 2019
checked on Dec 22, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.