Rapid speed stabilization method for three-phase brushless direct current motor
A brushed DC motor and motor speed technology, applied in the direction of single motor speed/torque control, electronic commutator, starting device, etc., can solve the problems of sacrificing real-time performance, difficulty in achieving expected goals, and complex algorithms, etc., to achieve Reduce the effect of speed overshoot oscillation
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[0083] The content stated in the content of the above invention is only an explanation of the method for fast adjustment of the brushless DC motor. In order to understand the present invention more intuitively, the implementation examples with better effects are described in detail as follows.
[0084] The selected controller is C8051F580 single-chip microcomputer as the control chip realized by the algorithm of this example. The clock is 48MHz, and the PWM duty cycle output is completed through the PAC module, and the duty cycle resolution is 1 / 2048.
[0085] 1. Motor speed detection
[0086] The position signal of the motor is detected by the Hall sensor, and the controller records the detection clock pulse count n used for the same position signal of the motor to appear once, and the rotational speed is represented by the pulse count n. In the traditional motor speed measurement process, it is necessary to follow the formula: speed = 60×CLK / (P×n), where CLK is the samplin
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