参数自调整模糊PID调节器的仿真研究

Research on Simulation of Fuzzy PID Controller with Parameter Self-adjustment Feature

主要针对实际复杂工业对象中存在的非线性、不确定性、时变性等特点,在常规模糊控制器的基础上,提出了一种参数自调整模糊控制器的设计方法。采用该方法事先不需要获知对象的精确数学模型,而是基于人类的思维以及生产经验,用语言规则描述控制过程,并根据规则去调整控制算法或控制参数。实验表明,参数自调整模糊控制算法具有一定的自适应性,能实现对复杂工业过程的控制。

Aiming at the characteristics of complex industrial objects, e, g. non-linearlty, uncertainty and time variation, on the basis of conventional fuzzy controller, the design method for a fuzzy controller with parameter self-adjustable feature is proposed. By adopting this method precise mathematical model of the object is not necessary, instead, based on human thinking and experience on production, the control process is described by language rules, and the control algorithm or control parameter is adjusted in accordance with the rules. The experiment shows that the proposed control algorithm features self-adaptabihty and is able to control complex industrial proeesscs.