What are the “higher” of permanent magnet motors?
At the equipment expo, Xiao Q saw a set of equipment. While the manufacturer introduced the equipment in detail, it specially emphasized the matching permanent magnet synchronous motor. Xiao Q listened to the introduction of some of the rendering components, silent for a long while. After all, the equipment is “superior” due to the strong power core, which forces the budget-conscious small Q to weigh the pros and cons, and take a bit of “pressure”. Today Ms. Participate in the purchase of equipment by small Q, and simply talk about permanent magnet synchronous motor.
First, the necessary and effect analysis of supporting permanent magnet motor
The permanent magnet motor of the equipment is not only as simple as the power core. It is necessary to update the ordinary power supply as a controllable power supply, and together with the permanent magnet motor body constitute a permanent magnet motor system. Compared with the conventional motor system, the permanent magnet motor system performs variable frequency transformation through the power electronic converter, and the output shaft speed and power of the motor can be smoothly adjusted in a wide range, and the performance of the equipment is revolutionized, that is, adaptively changing with load, adaptive Adjusting the economic operation of the equipment, the energy saving effect is very significant.
Second, permanent magnet motor and ordinary motor
1, ordinary motor
Ordinary motors are divided into two categories: asynchronous motors and synchronous motors. 70% to 80% of the equipment uses asynchronous motors, and a few high-torque, low-speed equipment use synchronous motors.
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