Robust decentralized stabilization of thermal-power plants

This paper develops a robust decentralized stabilization method of thermal-power plants using linear matrix inequalities (LMIs). This method guarantees robust stability and provides H;_∞ rejection of time-varying and norm-bounded parametric uncertainties. It consists of an observer in each control channel, which includes estimates of the controls in the other channels and of the worst disturbance as determined by a state-feedback H;_∞ solution. The observer gains are computed using LMIs. Results of simulation studies show the efficiency of the developed method.