Magnetic linkage self-control direct torque control method of brushless DC motor
A direct torque control, brushed DC motor technology, applied in the direction of a single motor speed/torque control, electronic commutator, etc., can solve the problem of complex system control methods, to suppress torque fluctuations, simplify the system, overcome magnetic Estimation of chains and effects of given difficulty
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[0018] Specific implementation mode 1: the following combination Figure 1 to Figure 8 To illustrate this embodiment, this embodiment first rectifies the AC power supply 1 of the industrial frequency by the rectifier 2, and then filters the DC power by the filter capacitor 3, and then the inverter 4 converts the DC power into AC power. Brushless DC motor power supply; its control method is:
[0019] Collect the three-phase current value at the input end of the brushless DC motor, and perform a three-phase-two-phase coordinate transformation on the three-phase current value to obtain the component i of the three-phase current value at the input end of the brushless DC motor in the two-phase stationary coordinate system α , I β ; Collect the three-phase voltage value at the input end of the brushless DC motor, and perform a three-phase-two-phase coordinate transformation on the three-phase voltage value to obtain the components of the three-phase voltage value at the input end of the...
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