Wq. Sun et al., SOLUTION TO THE POSITIVE REAL CONTROL PROBLEM FOR LINEAR TIME-INVARIANT SYSTEMS, IEEE transactions on automatic control, 39(10), 1994, pp. 2034-2046
Citations number
38
Categorie Soggetti
Controlo Theory & Cybernetics","Robotics & Automatic Control","Engineering, Eletrical & Electronic
In this paper we study the problem of synthesizing an internally stabi
lizing linear time-invariant controller for a linear time-invariant pl
ant such that a given closed-loop transfer function is extended strict
ly positive real. Necessary and sufficiency conditions for the existen
ce of a controller are obtained. State-space formulas for the controll
er design are given in terms of solutions to algebraic Riccati equatio
ns (or inequalities). The order of the constructed controller does not
exceed that of the plant.