Brushless
DC motor is widely used, such as cars, tools, industrial, industrial
control, automation, and aerospace and so on. Overall, the brushless
DC motor can be divided into the following three main purposes:
Sustained
load applications: mainly requires a certain speed but speed less
precision fields, such as the application of the fans, pumps, hairdryer,
lower the cost of this type of application, and more for the open-loop
control.
Variable
load applications: speed need to change in a range of applications,
there is a higher demand characteristics of the motor speed
characteristics and dynamic response time. Such as household appliances,
tumble dryers and compressors is a good example, the automotive
industry, the oil pump control, electrical controllers, engine control
systems such applications cost more.
Location-based
applications: most industrial control and automatic control
applications fall into this category will complete the delivery of
energy, such applications often have a special request, so the dynamic
response speed and torque requirements of the controller is also higher.
The tachometer may spend photovoltaic and synchronization equipment.
Process control, mechanical control, and transport controls many of them
fall into this category.
The
practicality of the new brushless motor and electronic technology,
micro-electronics technology, digital technology, automatic control
technology, and materials science development closely linked. It is not
limited to the field of DC-to-AC, also relates to electric power
generation energy conversion and signal sensing. In the motor areas of
the varieties of the new brushless motor is more, but the performance
brushless motor due to the price limit, its application is not very
extensive. The following major new brushless motor exploration and
research.