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What are the characteristics of bld.c. motors

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电机
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764
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2024-05-31

BLDC motor (BLDC) is a permanent magnet synchronous motor with position feedback, which uses DC power input and is converted into three-phase AC power supply by inverter.

motor

It integrates the advantages of DC motor and AC motor, which not only has good adjustment performance of DC motor, but also has the advantages of simple structure, no commutation spark, reliable operation and easy maintenance of AC motor.

The main characteristics of BLDCM include:
1. Because the BLDCM adopts permanent magnet synchronous technology, the efficiency is higher than that of the traditional BLDCM.
2. The bld.c. motor has no easily worn parts such as brushes and commutators, and the maintenance cost is low.
3. The bld.c. motor is smaller than the traditional brush D.C. motor and can be used in some compact spaces.
4. Because the bld.c. motor has no mechanical wear parts, it has higher reliability.
5. Bld.c. motor can achieve precise speed regulation control through electronic controller, and has good speed regulation performance.
C

    • Terrelle

      2024-06-03
      1、 The brushless DC motor has good external characteristics and can output large torque at low speeds, allowing it to provide large starting torque;
2、 The brushless DC motor has a wide speed range and can operate at full power at any speed;
3、 The high efficiency and strong overload capacity of brushless DC motors make them excellent in driving systems;
4、 The regenerative braking effect of brushless DC motor is good, as its rotor is made of permanent magnet material, the motor can enter the generator state during braking;
5、 The brushless DC motor has a small volume and high power density;
6、 The brushless DC motor has no mechanical commutator and adopts a fully enclosed structure, which can prevent dust from entering the interior of the motor and has high reliability;
7、 The drive control of brushless DC motors is simpler than that of asynchronous motors.
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