麦蚜种群T-S模糊模型的建立与突变控制

T-S fuzzy modeling and catastrophe control on wheat aphid populations

为消除麦蚜种群的爆发现象,本文以麦蚜种群突变模型为研究对象,首先,利用扇区近似法建立相应的T-S模糊模型,验证了突变模型与T-S模糊模型的逼近性。其次,针对麦蚜种群的突变行为,借助平行分布补偿法对T-S模糊模型设计控制器,使模糊模型稳定于理想状态。最后,通过仿真证实控制器的有效性。

In order to eliminate outbreak phenomenon of wheat aphid populations,the catastrophe model of the wheat aphid populations is studied in this work. Firstly,the corresponding T-S fuzzy model is established by using sector approximation method,which is verified to well approach the original catastrophe model. Secondly,for the catastrophe behavior of the wheat aphid populations,a controller is designed for the T-S fuzzy model by using parallel distribution compensation method to stabilize the fuzzy model at its ideal state. Finally,the effectiveness of the controller is verified through performing simulations.