Title :
Decentralized PI Controller Design Based on Phase Margin Specifications
Author_Institution :
Dept. of Control Eng., Czech Tech. Univ. in Prague, Prague, Czech Republic
Abstract :
An effective method for design and tuning of decentralized PI controllers for stable multi-input, multi-output systems is presented in this brief. The direct Nyquist array is applied to shape the Gershgorin bands for each loop separately such that they pass through a specified point corresponding to phase margin specification that is used as a single tuning parameter. The procedure is applied on the control of a laboratory model of quadruple-tank system.
Keywords :
MIMO systems; PI control; control system synthesis; decentralised control; tanks (containers); Gershgorin bands; controller tuning; decentralized PI controller design; direct Nyquist array; phase margin specifications; proportional-integral controller design; quadruple-tank system; single tuning parameter; Arrays; Laboratories; MIMO; Numerical stability; Process control; Stability analysis; Tuning; Decentralized control; Nyquist stability analysis; multivariate systems; phase margin; quadruple-tank process;
Journal_Title :
Control Systems Technology, IEEE Transactions on
DOI :
10.1109/TCST.2013.2248060
