Steam temperature prediction control method for thermal power generation three-stage attemperation water system

The invention discloses a steam temperature prediction control method for a thermal power generation three-stage attemperation water system. According to the technical scheme, the method comprises the steps that process variables related to a controlled object are determined according to the technological process of thermal power generation three-level temperature reduction control; a controlled object model is established, and dynamic behaviors of a controlled object are described through analysis and modeling of process variables; identifying process variable data, introducing an adaptive model, and establishing a dynamic optimization model set of a controlled object; a predictive control strategy with constraints is adopted, a predictive controller set is designed, self-adaptive dynamic adjustment is carried out according to working conditions, and precise control over a process object is achieved. The predictive control method provided by the invention is superior to a conventional PID control method, and