Integrated self-adaptive flux shunt speed multiplying method of permanent magnet brushless motor
A permanent magnet brushless, self-adaptive technology, applied in the direction of speed/torque control of a single motor, can solve the problem of poor effect and achieve the effect of speed increase
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[0025] The present invention will be further explained in conjunction with the accompanying drawings. The manufacturing technology of this device is very clear to those in the field.
[0026] See figure 1 , In the figure a-b-c is the characteristic curve of permanent magnet motor, a-b-d-e is the ideal vehicle dynamic characteristic curve, the front section a-b is the equal torque section, and the b-d-e section is the equal power section, which is a hyperbola P=Tm×ω. The product of the coordinates of each point on the curve is the power P=Tm×ω, which is equal to the area on the lower left. As can be seen in the figure, the speed range of the permanent magnet motor is very narrow, and the speed regulation ratio ω 2 / ω 1 Lower than the reference speed ω 1 Not much higher, and the power drops sharply as the speed increases. The ideal characteristic is that the speed regulation ratio is the base speed ω 1 2 times or more. Figure ω 2 It is the highest speed at a constant speed corresp...
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