Browsing by Author "Hamamci, Serdar"

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    Robust Estimator-Based Optimal Control Designs for U-Tube Steam Generators
    (Sage Publications Ltd, 2015) Ablay, Gunyaz; Hamamci, Serdar
    U-tube steam generator level control systems are used to maintain the water level within prescribed narrow limits and to provide constant supply of high-quality steam during power demand variations. Traditional level control systems are often found to be unsatisfactory during low power operations and start-up conditions. Robust non-linear estimator-based optimal control systems are proposed for steam generator level control systems to solve the water level tracking problem during power (or steam) demand variations. It is shown that the proposed control strategies provide optimal and robust water level tracking with a single controller over the complete range of power operation with model and parameter uncertainties and noisy measurements.