基于相平面轨迹特征的规则自调整模糊控制方法

通过对模糊控制系统相平面响应轨迹特性的分析, 提出了相平面响应轨迹实时特征向量和实时特征向量夹角的概念; 在分析实时特征向量夹角特性的基础上, 提出基于相平面响应轨迹特征的规则自调整模糊控制方法; 仿真结果表明, 该方法可以减小模糊控制系统的超调和过渡过程, 提高系统的收敛速度.

Method of rule self-tuning fuzzy control based on trajectory performance of phase plane

The phase plane has already been an important method to design the fuzzy control system and analyze its stability. The concepts of the responding trajectory real-time characteristic vectors and the angles between the real-time characteristic vectors on the phase plane were put forward by analyzing the responding trajectory performance on the phase plane of the fuzzy control system. The method of rule self-tuning fuzzy control based on the responding trajectory performance on the phase plane was presented and the characteristics of the angles between the real-time characteristic vectors were discussed. The simulation results show that the method is capable of increasing the ability to identify and describe the controlled system in small error, reducing the overshoot, rising time greatly and improving the convergence speed of the fuzzy control system, possessed of a simply arithmetic and does not require much storage space and calculating time, and easy to perform.