Title :
The two-pole two-zero root locus
Author :
Neuman, Charles P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA, USA
fDate :
11/1/1994 12:00:00 AM
Abstract :
The author highlights the unity negative feedback root locus of a loop gain having two real poles lying along the real axis to the right of two real zeros. He demonstrates that the complex portion of the root locus (of the closed-loop negative feedback system) is a circle. He locates the center and computes the radius of the circle, and illuminates the stability of the closed-loop system
Keywords :
closed loop systems; control system analysis; feedback; poles and zeros; root loci; stability; center; closed-loop negative feedback system; complex portion; loop gain; radius; stability; two-pole two-zero root locus; unity negative feedback root locus; Control engineering; Equations; Frequency; Geometry; Negative feedback; Negative feedback loops; Poles and zeros; Sampling methods; Stability; Transfer functions;
Journal_Title :
Education, IEEE Transactions on
