Analysis of a probing control strategy

• In this paper we analyse an extremum controller based on a pulsetechnique. The idea is to superimpose probing pulses to the controlsignal and use for feedback the size of the pulse response in the output. Theprobing control strategy has been used with success forthe control of the substrate feeding in E. coli cultivations. The analysis is done here for systems ofHammerstein type with a piecewise affine nonlinearity. Stability ofthe closed-loop system can be checked by solving suitable linearmatrix inequalities. Some performance analysis that can help the userfor the control design is also performed.

Ämnesord

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

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

Nyckelord

stability

linear matrix

control signal

affine nonlinearity

Hammerstein type

Escherichia coli

E. coli cultivations

inequalities

piecewise affine nonlinearity

probing control strategy

probing pulse superimposing

substrate feeding

pulse technique

extremum controller

control design

closed loop system

Publikations- och innehållstyp

kon (ämneskategori)

ref (ämneskategori)