Control Method of Permanent Magnet Synchronous Motor Based on Hall Position Sensor
A permanent magnet synchronous motor, Hall position technology, applied in motor generator control, electronic commutation motor control, control system and other directions, can solve the problem of excessive estimation result deviation, torque and current fluctuation, torque fluctuation, etc. The effect of increasing starting torque, reducing torque fluctuation, and reducing torque fluctuation
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[0057] In this embodiment, the control method of the permanent magnet synchronous motor based on the Hall position sensor adopts the Nanpu 1.2KW permanent magnet synchronous motor as the controlled object, and the specific implementation steps are as follows:
[0058] 1) Open the three-phase electric circuit of the motor, drag it up at the rated speed, then connect the negative pole of the oscilloscope probe to the W phase, and the positive pole to the V pole to obtain the back electromotive force waveform.
[0059] 2) Connect the outputs A, B, and C of the Hall position sensor of the motor to the positive pole of the oscilloscope test lead, and the negative pole of the test lead to the negative pole of the Hall position sensor power supply, and compare it with the back electromotive force waveform obtained in step 1.1 to obtain the position sensor. Along the corresponding six discrete electrical angles θ r1 =27.6°, θ r2 =92.4°, θ r3 =147.2°, θ r4 =207.5°, θ r5 =272.3°, θ ...
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