Based On The Electromagnetic And Permanent Magnet Suspension System Control Method Research

Magnetic levitation is a technology which has many merits such as no mechanicalfriction, no noise and low power loss. In recent years, magnetic levitation has manyindustrial applications such as high speed control, high precision control and super cleanprocessing. However, it is difficult to build its mathematical model because of itsinherent nonlinearity, instability, as well as the problem of uncertainties caused bydisturbance of the traditional magnetic levitation control system. These factors make thecontrol using the traditional control methods more difficult.First, this article introduces the background, results and theoretical support of theelectromagnetic-magnet mixed suspension system. Second, In the Study of a singleelectromagnetic and permanent magnet suspension system based on,Analysis of theelectromagnetic-hybrid permanent magnet structure and principle of the suspensionsystem and suspension system based on this mathematical model, get the exact transferfunction of the system for electromagnetic-permanent magnet hybrid suspensionsystem, the analysis of large time delays, by Smith makes the control algorithm tocontrol the results.Third, Research of distributed electromagnetic and permanent magnetsuspension system movement rules, and introduces several control suspension systemcontrol method, on the basis of the optimal selection of control method in the controlsystem.Finally, The simulation results are given, the results show that, the Smith predictivecontrol algorithm can be effective on the large time delay system with compensation,enables the system to achieve the best stability; and the optimal control method canmake the distributed electromagnetic and permanent magnet suspension system toobtain good control effect. Summary of the whole system the success and shortage, andfor the next project started to lay a solid foundation.