Jieyang HongJiaYou Industry Co Ltd What are the technical characteristics of brushless DC motors?

What are the technical characteristics of brushless DC motors?

Brushless DC motors should be familiar to everyone. Many products in our life use brushless DC motors. What are the technical characteristics of brushless DC motors? Let’s take a look at them.

Technical characteristics of brushless DC motor:

Brushless DC motor has high power factor, no loss and heat generation of rotor, and high efficiency: compared with data, the efficiency of 7.5kw asynchronous motor is 86.4%, and the efficiency of brushless DC motor with the same capacity can reach 92.4%.
Electronic control to obtain the operating characteristics of similar DC motors, with better controllability and wide speed range.

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Technical characteristics of brushless DC motor

There must be an electronic control section, the total cost is higher than the DC motor.
Rotor position feedback information and electronic multiphase inverter drive are required.
Essentially an AC motor. Due to the spark and wear problems of brushes and commutators, it can work at high speeds, achieve high reliability, long working life and no need for frequent maintenance.

The technical characteristics of the brushless DC motor are introduced here. At present, in the application of the AC system, the motor mainly has a sense motor and a permanent magnet synchronous motor.

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