Single Electric Magnetic Levitation System Nonlinear Robust Control And Simulation

Maglev levitation technology has the advantage of non-contact, no mechanical friction,low power consumption, no need of lubrication and longevity of service life. It has broadapplication prospects in metallurgy, transportation, machinery, materials and so on. Magneticlevitation system with one degree of freedom has a simple structure, and is easy to be modeled,and the performance analysis is relatively easy which can greatly shorten the research cycle. Inthe paper, the robust control problem of magnetic levitation systems with one degree of freedomis discussed. Firstly, based on the differential geometry method, we get the magnetic levitationsystems in the new coordinate space Brunovsky standard linear system by accurate feedbacklinearization. According to the H method and the exhaustive method, we get the standard ofthe linear systems robust control feedback, and obtain the original nonlinear robust control of thesystem and prove that the control law is single electromagnetic suspension system under the gainsignificance of interference suppression control strategy. The controllers which are get by thetwo methods are simulated by matlab. It proves that the control system for the research hasrobustness, and shows the feasibility of solution.