Surface-mounted permanent magnet synchronous generator flux weakening control method
A permanent magnet synchronous motor and permanent magnet synchronous technology, applied in the direction of motor generator control, electronic commutation motor control, control generator, etc., can solve the problem of low control efficiency and achieve good dynamic response and robustness of parameters Good, to achieve the effect of stable operation
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[0028] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.
[0029] The present invention adopts figure 1 The shown circuit topology realizes the field-weakening control of the surface-mounted permanent magnet synchronous generator. The surface-mounted permanent magnet synchronous generator is driven by the prime mover. 1 and switch Q 4 The midpoint U of the bridge arm and the switching tube Q 2 and switch Q 5 The midpoint V of the bridge arm and the switching tube Q 3 and switch Q 6 The midpoint W) of the bridge arm is respectively connected to the three-phase stator winding of the permanent magnet synchronous generator, and the DC side of the PWM rectifier is connected to the filter capacitor C and the resistive load R L .
[0030] When the rotation speed of the generator is higher than the base speed, only one quadrature axis current regulator is used and the direct axis voltage is directly given by ...
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