Application of Brushless Motors.

Application of Brushless Motors.

The application of brushless motors is very extensive, such as in automobiles, tools, industrial control, automation, aerospace, and so on. In general, brushless DC motors can be divided into the following three main uses:

Continuous load applications: mainly in fields that require a certain speed but do not require high speed accuracy, such as fans, water pumps, hair dryers, etc. These applications have lower costs and are mostly open-loop control.

Variable load applications: mainly applications where the speed needs to vary within a certain range, with higher requirements for motor speed characteristics and dynamic response time characteristics. Household appliances such as dryers and compressors are good examples. In the automotive industry, applications such as oil pump control, electric controllers, and engine control have relatively higher system costs.

Positioning applications: Most industrial control and automatic control applications belong to this category, where energy transfer is often completed. Therefore, there are special requirements for the dynamic response of speed and torque, as well as high requirements for controllers. Optoelectronics and some synchronization devices may be used during speed measurement. Many applications such as process control, mechanical control, and transportation control belong to this category.

The practical new brushless motor is closely related to the development of electronic technology, microelectronics technology, digital technology, self-control technology, and materials science. It is not limited to the fields of AC and DC, but also involves energy conversion and signal sensing for electric and power generation. There are many varieties of new brushless motors in the field of motors, but high-performance brushless motors are not widely used due to price limitations.