Control And Reconfigurable Control To A Class Of The Predator-prey Ecosystem With Time Delay

The predator-prey ecosystems with time delay are more complex. At present, the most papers are focused on stability, periodic solution and Hopf bifurcation. There is less research about the control of them.Wangersky-Cunningham predator-prey ecosystem with time delay is introduced, and its asymptotical solution, stability and Hopf bifurcation are analysed firstly. In Part 4, the work is divided into two steps: through constructing the control method, the responding-system and its model would be achieved synchronization, when time delay in responding-system is consistent with the ideal value. (2)When the error exists between time delay in responding-systems and the ideal value, based on the former control method, through the comparing the state density to the expected one at some time, the fuzzy rule base is established, and the adaptive laws of the error parameter is obtained, which is utilized to decide whether it is necessary to reconfigure the control method, and the law of reconfigurable control is also given to. Based on the Part 4, the method of reconfigurable control is improved in the Part 5, so that the calculation is predigested, and the background of the predator-prey ecosystem can be integrated into its control study. The results of computer simulation show that the effect of the two reconfigurable control are identical, finally.The above research theoretically has provided the significative reference information for the investigation for Wangersky-Cunningham predator-prey ecosystem and proves the feasibility of its control when the exterior entironment changes, and provides a new idea for ecosystem control.