|Robustness design of a dynamic output-feedback decentralized controller using H∞ synthesis and LMI paradigm
Ali Sghaier Tlili
International Journal of Control, Automation, and Systems, vol. 15, no. 4, pp.1544-1552, 2017
Abstract : "This paper proposes developing a H∞ dynamic output-feedback decentralized control design method
for nonlinear interconnected systems subject to time-varying parameters and external disturbances. The designed
controller is formulated as an optimization problem subject to linear matrix inequalities (LMIs) for the concurrent
computation of the decentralized observation and control gains, and for the external disturbance mitigation by means
of a H∞ performance criterion minimization. The propounded optimization problem, designed in LMI conditions,
is expeditiously resolved by a one-step procedure to override the conservatism generated by using many step-based
procedures often used in the analysis and synthesis of interconnected systems. The effectiveness of the developed
control scheme is demonstrated through simulation results of multimachine power systems."
"Decentralized observation and control, H∞ criterion, interconnected systems, LMI optimization, multimachine power systems."