=ADD= =reftype= 14 =number= 99-23 =url= ftp://ftp.risc.uni-linz.ac.at/pub/techreports/1999/99-23.ps.gz =year= 1999 =month= 08 =author= Rodriguez-Millan; Jesus =title= Symbolic PID Control of Second Order Linear Control Systems =abstract= In this work we search for answers to the following questions: i) Under what conditions can a PID controller asymptotically stabilize a second order linear plant? ii) Given a set of design specifications for the closed loop system, does the design problem admit a pole assignment solution? iii) Can the design procedure be constructively seystematized to allow a symbolic computation implementation? =keywords= control systems