Research output: Contribution to journal › Letter › peer-review
Robust Stability of Time-Delay Systems. / Kharitonov, Vladimir L.; Zhabko, Alexei P.
In: IEEE Transactions on Automatic Control, Vol. 39, No. 12, 01.01.1994, p. 2388-2397.Research output: Contribution to journal › Letter › peer-review
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TY - JOUR
T1 - Robust Stability of Time-Delay Systems
AU - Kharitonov, Vladimir L.
AU - Zhabko, Alexei P.
PY - 1994/1/1
Y1 - 1994/1/1
N2 - There are two fundamental results available when we study stability of a polynomial family that is described by convex polytope in the coefficient space: The Edge Theorem and the theory based on the concept of convex directions. Many known results can be explained with these two results. This paper deals with a generalization of this line of research to the case of quasipolynomials that are entire functions which include both degree of the independent variable and exponential functions. The main objects of the paper are the developing of the concept of convex directions for quasipolynomials and exploiting this concept for construction of testing sets for quasipolynomial families. One of the primary sources of motivation for the class of problems considered in this paper is derived from process control. A typical problem formulation almost always includes a delay element in each subsystem process block. When we interconnect a number of such blocks in a feedback system, the study of robust stability involves quasipolynomials of the sort considered in this paper.
AB - There are two fundamental results available when we study stability of a polynomial family that is described by convex polytope in the coefficient space: The Edge Theorem and the theory based on the concept of convex directions. Many known results can be explained with these two results. This paper deals with a generalization of this line of research to the case of quasipolynomials that are entire functions which include both degree of the independent variable and exponential functions. The main objects of the paper are the developing of the concept of convex directions for quasipolynomials and exploiting this concept for construction of testing sets for quasipolynomial families. One of the primary sources of motivation for the class of problems considered in this paper is derived from process control. A typical problem formulation almost always includes a delay element in each subsystem process block. When we interconnect a number of such blocks in a feedback system, the study of robust stability involves quasipolynomials of the sort considered in this paper.
UR - http://www.scopus.com/inward/record.url?scp=0028727242&partnerID=8YFLogxK
U2 - 10.1109/9.362855
DO - 10.1109/9.362855
M3 - Letter
AN - SCOPUS:0028727242
VL - 39
SP - 2388
EP - 2397
JO - IEEE Transactions on Automatic Control
JF - IEEE Transactions on Automatic Control
SN - 0018-9286
IS - 12
ER -
ID: 40336338