Title :
Failure of the Routh-Hurwitz method of reduction
Author_Institution :
Florida Atlantic University, Boca Raton, FL, USA
fDate :
4/1/1980 12:00:00 AM
Abstract :
The Routh-Hurwitz reduction method is shown to have a serious disadvantage in that the reduced model may approximate the nondominant poles of the system and hence lead to erroneous approximations. A numerical example is given to compare the Routh-Hurwitz method to the Padé approximation method.
Keywords :
Large-scale systems; Linear systems, time-invariant continuous-time; Routh stability criterion; Approximation methods; Computer aided software engineering; Equations; Fitting; Polynomials; Reduced order systems; Stability; Steady-state; Taylor series; Transfer functions;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.1980.1102271
