Abstract
A fuzzy predictive control system of steam dryness for steam-injection boiler is presented in this paper, which is based on the investigation of current control systems and the analysis about the characteristics and influencing factors for steam Dryness. In this control system, a two dimension fuzzy controller is employed to steady steam pressure, and error and error change of steam pressure are used as the input variables of this fuzzy controller. A fuzzy predictive controller based on T-S fuzzy model is employed to obtain the control variable of fuel-dryness closed loop. And this control variable is multiplied by the feed forward control variable to form the feed forward-feedback control of dryness fraction. The simulation results show that the presented fuzzy predictive control system has good control performance and simple algorithm for easy realization.
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