A high-speed embedded permanent magnet synchronous motor current decoupling control method
A permanent magnet synchronous motor, current decoupling technology, applied in motor generator control, electronic commutation motor control, control of electromechanical brakes, etc. Easy to parse effects
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[0120] In this embodiment, the current decoupling control method of a high-speed embedded permanent magnet synchronous motor includes the following steps:
[0121] The first step is to establish an accurate discrete mathematical model of the permanent magnet synchronous motor:
[0122] After considering the digital control delay factor, the precise discrete mathematical model of the permanent magnet synchronous motor is obtained, that is, formula (6):
[0123]
[0124] Among them: u d ,u q Respectively d, q axis voltage, j is the complex domain, z is the discrete domain, T s is the sampling time, R s is the stator resistance, w e is the rotor electrical angular velocity, L d , L q is the d, q axis inductance;
[0125] The second step is to build a high-speed permanent magnet synchronous motor current decoupling controller:
[0126] 2-1. Build an ideal motor current decoupling controller:
[0127] Assuming that in an ideal situation, that is, when the permanent magn...
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