Permanent magnet synchronous motor control algorithm of small-capacity thin-film capacitor transducer system
A permanent magnet synchronous motor and film capacitor technology, applied in motor generator control, electronic commutation motor control, vector control system, etc., can solve the harmonic pollution of power grid, low system power factor, reduction of diode conduction angle, etc. problems, to achieve the effect of reducing system cost, improving impedance model, and improving stability
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[0023] The present invention will be further explained below in conjunction with the accompanying drawings.
[0024] Such as figure 1 As shown, a permanent magnet synchronous motor control algorithm for a small-capacity film capacitor inverter system includes the following steps:
[0025] (1), get the current motor rotor position angle θ through the encoder or Hall position sensor, and calculate the actual speed ω of the motor; then the current motor rotor speed ω through negative feedback, and the given speed ω * Constitute the speed outer loop, subtract the two to get the speed deviation signal Δω, the output signal of the speed deviation signal after the speed regulator is used as the motor torque given value T ** .
[0026] (2), set the motor torque given value T in step (1) ** After a low-pass filter or Fourier decomposition, the torque given value T is obtained ** , Torque given value T ** Get the DC component through the low-pass filter as the torque given value T ...
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