Journal of the Korean Institute of Telematics and Electronics B (전자공학회논문지B)
- Volume 32B Issue 10
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- Pages.1259-1268
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- 1995
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- 1016-135X(pISSN)
A Certain Class of Root Clustering of Control Systems with Structured Uncertainty
구조적불확실성을 갖는 제어시스템의 Root Clustering 해석
Abstract
This note presents the robust root clustering problem of interval systems whose characteristic equation might be given as either a family of interval polynomials or a family of polytopes. Corresponding to damping ratio and robustness margin approximately, we consider a certain class of D-region such as parabola, left-hyperbola, and ellipse in complex plane. Then a simpler D-stability criteria using rational function mapping is presented and prove. Without .lambda. or .omega. sweeping calculation, the absolute criteria for robust D-stability can be determined.
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