Mixed continuous/discrete-time output feedback H∞ control : A unified approach

• A Riccati equation (RE) based solution to the H∞ optimal control problem for mixed continuous/discrete-time systems is presented. The results unify a number of recently penetrated H∞ control problems. In the infinite-horizon case a periodic behaviour is assumed, and it is shown how the related continuous RE with jumps can be replaced by an equivalent discrete periodic RE. A related algebraic RE, which involves the system behaviour during one period, then can be formulated and solved by standard methods. Typical applications are control of continuous-time or discrete-time periodic systems, as well as multirate and sampled-data control, including mixed continuous and sampled-data measurements. © 1999 EUCA.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)

NATURVETENSKAP  -- Data- och informationsvetenskap (hsv//swe)

NATURAL SCIENCES  -- Computer and Information Sciences (hsv//eng)

Keyword

Algebra

Continuous time systems

Optimal control systems

Riccati equations

Sampled data control systems

Time varying systems

Infinite horizons

Lifting

Optimal control problem

Output feedback

Sampled data

Sampled-data control

Sampled-data measurements

Typical application

Discrete time control systems

Produktions- och materialteknik

Manufacturing and materials engineering

Publication and Content Type

ref (subject category)

kon (subject category)