Construction method of a bearingless synchronous reluctance motor suspension system
A synchronous reluctance motor and system construction technology, applied in the direction of electronic commutator, etc., can solve problems such as complex algorithm, reduced motor reliability, poor transient regulation performance, etc.
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[0073] In order to make the content of the present invention more obvious and understandable, further description will be given below in conjunction with the accompanying drawings and specific embodiments.
[0074] Construct a suspension system based on rotor displacement observation of bearingless synchronous reluctance motor and internal model decoupling control of suspension winding current. The structure principle of a preferred embodiment of the present invention is as follows image 3 :
[0075] Build an extended displacement observer 5, combine figure 1 The extended displacement observer is composed of a suspension force observation 1, a PI adaptive rate 4, a PID regulator 3 and a Park inverse transform 2.
[0076] Detect and obtain the three-phase currents of the suspension winding and the torque winding of the motor, and obtain the two-phase currents under the synchronous rotating coordinate after coordinate transformation, which are the equivalent two-phase currents of the ...
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