Novel AGC control method of circulating fluidized bed boiler

The invention discloses a novel AGC control method of a circulating fluidized bed boiler. The novel AGC control method comprises the following steps that S1, the step response coefficient of a controlled object is acquired; S2, the state space approximate expression form of the controlled object is acquired; S3, a prediction model of predictive control is acquired; S4, rolling optimization of the control method is carried out; and S5, feedback compensation of the control method is carried out. According to the method, the dynamic adjustment function of primary air on the boiler side on the unit power of the steam engine side in the dynamic process of the circulating fluidized bed boiler is fully utilized, hearth bed materials are fully utilized for energy storage, the lagged effect of the boiler fuel amount is reduced, and the disturbance suppression capacity of a system can be improved through an improved predictive control algorithm. 本发明公开了种循环流化床锅炉的新型AGC控制方法，包括以下的步骤：S1：获取控制对象的阶跃响应系数；S2：获得控制对象的状态空间近似表述形式；S3：