Initial electrical angle learning method for Hall-free linear motor
A technology of electrical angle and learning method, applied in the direction of electrical components, control generator, motor generator control, etc., can solve the problems of long estimation time, low recognition accuracy, complicated operation method, etc., and achieve the effect of meeting application requirements
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[0037] Example one
[0038] This embodiment is an example of a linear motor motor angle as a search linear motor. figure 2 First, the voltage vector is first emitted to the 180 degree direction, including three possibilities, respectively, the coil is not moving, moving in the positive direction (the feedback pulse is increased), moving in the negative direction (the feedback pulse is reduced). specifically:
[0039] 1. If you don't move, the search is complete, the electrical angle of the rotor is the current vector pointing;
[0040] 2, if you move in the positive direction, the next 180- (90 / 1) = 90 degree direction is issued;
[0041] 3. If you move in the negative direction, the next 180+ (90 / 1) = 270 degree direction is applied.
[0042] The coil is moved in the positive direction in the above step, and the voltage vector is emitted in the 90 degree direction, including three possibilities, respectively, the coil does not move, moving in the positive direction, moving in the...
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