The applications of BLDC motors are very wide, such as automobiles, tools, industrial industrial control, automation, and aerospace. In general, BLDC motors can be divided into the following three main uses:
Continuous load applications: mainly applications that require a certain speed but not high speed accuracy, such as applications such as fans, pumps, hair dryers, etc. These applications have lower cost and are mostly open-loop control.
Variable load applications: mainly applications in which the speed needs to be changed within a certain range, and there is a higher demand for motor speed characteristics and dynamic response time characteristics. For example, in household appliances, dryers and compressors are good examples. In the automotive industry, oil pump control, electric controllers, engine control, etc., the system cost of such applications is relatively higher.
Positioning applications: Most industrial control and automatic control applications fall into this category. In such applications, energy transmission is often completed, so there are special requirements for the dynamic response and torque of the speed, and the requirements for the controller are high . Photoelectricity and some synchronization equipment may be used for speed measurement. Many process control, mechanical control, and transportation control fall into this category of applications.
The practical new type of BLDC motors is closely related to the development of electronic technology, microelectronic technology, digital technology, automatic control technology and materials science. It is not limited to the field of AC and DC, but also involves the fields of energy conversion and signal sensing of electric and power generation. In the field of motors, there are many new types of brushless motors, but brushless motors with excellent performance are not widely used due to price restrictions. The following are the main new brushless motors for exploration and research.
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