| Deeply theoretical and practical investigation towards ACspeed intelligent control system based on fuzzy neural network is processed. Working as an important research direction in automation, the characteristics of three-phase ACinduction motor speed control are promoted obviously and take place of DCspeed control in many fields,performance testing of asynchronous motors can be completed in the laboratoryPrinciples of induction motor vector control are demonstrated in details at first. Orientation control in magnetic field could improve the characteristics of induction motor torque control fundamentally and fulfill flux and torque decoupling. However, some unexpected and undecided factors in the process of system running make the dynamics of ACspeed controller fall out of the demanding. Traditional PID control couldn't reach the requirement of high precision, fast response and perfect robustness. Combination of intelligent control technology and vector control method become the hotspot of electric transmission workers at home or abroad, the method of which relys on applying of fuzzy neutral network in closed-loop control in pairs of motor speed control system. Fuzzy neutral network controller instead of PID in AC speed system is in the stage of researching which makes great sense to reality. According to the rules of on line speed deviation adjustment, combination between fuzzy neutral network and traditional PIDcontrol could reach the required consequence.Consequences of emulation and experiences indicate the good statistic and dynamic performance to this system.With deep analyzing to the principles of fuzzy neutral network and the practical methods applying in automation, MATLABsimulation tool based on interactive functions and hardware platform control system based on the chore of TMS320LF24 07ADSP are put forwards. Results of emulation and experiences reveal better control effect and distinct energy-saving effect for adding in the application of fuzzy neutral network.
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