Identifying method for inertia shaft of full-automatic magnetic bearing system based on nonlinear self-adaption control
A technology of adaptive control and active magnetic bearing, applied in adaptive control, general control system, control/adjustment system, etc., can solve problems such as excessive initial current and slow parameter convergence speed
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[0078] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation steps.
[0079] Such as figure 1 As shown, a method for identifying the inertial axis of a fully active magnetic bearing system based on nonlinear adaptive control in the present invention, its realization process is: firstly, a fully active magnetic bearing including rotor unbalance and displacement sensor harmonic noise (Sensor Runout) is established System rotor dynamics model; secondly, design nonlinear adaptive control law and estimation law, and prove the stability of the system and the convergence of estimated parameters; and then increase the recognizability of the same frequency component of the magnetic bearing system by changing the rotor speed strategy , realize the identification of the same frequency component of the harmonic noise of the displacement sensor (Sensor Runout) and the rotor unbalance, and finally realize the identifi...
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