Robust arbitrary pole placement with the extended Kautsky-Nichols-van Dooren parametric form
Robert Schmid, Nguyen Thang, Lorenzo Ntogramatzidis
2014 22ND MEDITERRANEAN CONFERENCE ON CONTROL AND AUTOMATION (MED) | IEEE | Published : 2014
We consider the classic problem of pole placement by state feedback. Our recent work  offered an eigenstructure assignment algorithm to obtain a novel parametric form for the pole-placing gain matrix to deliver any set of desired closed-loop eigenvalues, with any desired multiplicities. The method was adapted from the classic eigenstructure assignment algorithm of Kautsky, Nichols and van Dooren . In this paper we employ this parametric formula to introduce an unconstrained nonlinear optimisation algorithm to obtain a gain matrix that delivers any desired pole placement with optimal robustness.