Chaotic Anti-Control Of PM Thrustermotor System In Underwater Vehicles

At present, the deep-ocean robots are mainly tended to be used the military purposes. So it not only requires the high power-density, high speed and high mobility, but also requires outstanding hidden and anti-detection performance. Therefore, the design of deep-ocean robots with hidden and anti-detection nature should be good for the prerequisite of not reducing the performance of deep-ocean robots. The new ideas of increasing the PM thrustermotor system's hidden and anti-detection performance based on the chaotic theory are proposed in this paper, the PM thrustermotor system propulsion system is controlled to be the chaotic state which its speed and torque in chaotic state. Certainly, the noise, the shock and electromagnetic radiation became chaos so the aim of puzzle enemy is come true. The main job of the paper is to researches the method of chaotic anti-control of PM thrustermotor system.Main work includes:For seeking the more effective chaotic anti-control method, the thesis firstly overviewed the present development status of chaos anti-control and the existing method of chaotic anti-control ,and separately introduced representational method of anti-control of chaos based on tracking given chaotic system, chaotic anti-control of using sampled data, auto-adapted chaos anti-control and chaos anti-control of based on direct delay-time feedback at present, has analyzed they respective good and bad points.From the PM thrustermotor system 's principle of work from the underwater vehicles, induced and reorganizes the underwater vehicles to PM thrustermotor system 's dynamics model, and simplifies into one kind of change in the control simple equivalent model. The thesis distinctly applicate method of based on tracking given chaotic system, based on via delay-time state variable feedback and auto-adapted chaos anti-control for chaotic anti-control ,prove theoretically each method realizes possibility, design controller of each kind control method and carry on the simulation to each method's controlled process. Finally according to simulation result, The thesis analyze three method control effects from realizes complexity and Lyapunov exponent, summarize suited the underwater vehicles to PM thrustermotor system 's chaos counter-control method.In the thesis, the work and the findings have the vital scientific significance and the project use value to improve performance of preventing solving PM thrustermotor system in underwater vehicles.