With the rapid development of the motor industry, the application of brushless DC motor can be said to be more and more extensive, with commutation function and can produce DC power, suitable for a variety of equipment, since the demand is large, then how to improve the efficiency of brushless DC motor?

Stejnosměrný bezkartáčový motor

1. Reduce copper and iron losses by increasing the size of DC brushless motor, reducing the number of turns per slot at the same voltage and load, and increasing the number of wire diameter or parallel windings, iron losses can be reduced by replacing materials or improving machining accuracy.

2. Control the conduction loss of the main control element of the DC brushless motor circuit, the resistance loss of the coil and the friction loss of the shaft and bearing.

4. Use higher performance permanent magnet material as much as possible.

5. Adjust the phase conduction angle in the brushless DC motor control circuit so that the phase of the counter-electromotive force and the phase current over zero coincide as much as possible.

6. Adjust the control circuit. During operation, the ideal state is that the phase coincides between the trans-zero point of the counter-electromotive force and the trans-zero point of the phase current. At this time, the three-phase torque superposition of the motor is theoretically constant torque, torque pulsation becomes smaller, and the motor efficiency is improved.

Elektrický motor

In order to improve the efficiency of DC brushless motor, we must learn to make reasonable adjustments to the motor, reduce various energy losses, do maintenance work often, and try to use it in a dust-free environment, so as to improve the efficiency of DC brushless motor.

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