A Flux Optimization Method for Permanent Magnet Synchronous Motor Based on Nonlinear Dynamics Analysis
A permanent magnet synchronous motor and nonlinear dynamics technology, which is applied in the direction of motor generator control, control generator, AC motor control, etc., can solve problems such as complex objective functions, achieve the effect of reducing design cost and improving stability
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[0106] A method for optimizing the flux linkage of a permanent magnet synchronous motor based on nonlinear dynamics analysis of the present invention is specifically implemented according to the following steps:
[0107] Step 1, use the d-p coordinate system for analysis, that is, the stator and the rotor rotate synchronously, and establish the mathematical model of the permanent magnet synchronous motor, as shown in formula (1):
[0108]
[0109] In formula (1), L q is the q-axis stator inductance; R is the stator winding resistance; i q is the q-axis stator current; n p is the pole logarithm; L d is the d-axis stator inductance, and L q =L d ; ω is the angular velocity of the rotor in rad / s; i d is the d-axis stator current; ψ f is the permanent magnet flux linkage, the unit is Wb; u q is the q-axis stator voltage; u d is the d-axis stator voltage; J is the moment of inertia, the unit is kg m 2 ; b is the damping coefficient, the unit is N m (rad / s) -1 ; T L is...
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