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HomeNewsWhat are the applicable application areas of high-speed motors?

What are the applicable application areas of high-speed motors?

2020-08-08
High-speed motors have broad application prospects in the following aspects:

(1) The high-speed generator driven by the gas turbine is small in size and highly maneuverable. It can be used as a backup power source for some important facilities, and can also be used as an independent power source or a small power station to make up for the lack of centralized power supply and has important practical value. .

(2) With the development of hybrid vehicles in the automotive industry, small and light high-speed generators will receive full attention and have good application prospects in hybrid vehicles, aviation, ships and other fields.
(3) High-speed motors are used in various occasions such as air conditioners or centrifugal compressors of refrigerators. With the development of science and technology, there are more and more special requirements, and its applications will become more and more extensive.



Because the centrifugal force on the rotor of a high-speed motor is proportional to the square of the linear speed, the high-speed motor requires high mechanical strength; and because the high-speed motor has high frequency and large iron loss, the magnetic density in the core should be appropriately reduced during the design. Lost core material.

Bearing research is also inseparable from high-speed motors, because ordinary bearings cannot withstand long-term operation in high-speed systems, and bearings with new materials and new structures must be used.

High-speed motors can have a variety of structural forms, such as induction, permanent magnet motors, and reluctance motors. The centrifugal force of the motor during high-speed rotation is very large. When the linear speed reaches 200m/s or more, the conventional laminated rotor cannot withstand the centrifugal force generated by high-speed rotation, and special high-strength laminated or solid rotors are required.

In the nearly 100-year history of the development of rotor dynamics, many calculation methods have appeared. Today, modern calculation methods can be divided into two categories: transfer matrix method and finite element method.

The expression of the motion equation of the finite element method is simple and standard. It has many advantages when solving the problem of rotor dynamics or the complex mechanical system composed of the rotor and the surrounding structure. The finite element method divides the complex rotor system into a huge size, and the calculation result is more accurate than the transfer matrix method. However, the calculation takes longer time and takes up more memory. The development of modern computer technology provides good hardware technology for the finite element method.

Shenzhen Maintex Intelligent Control Co., Ltd.
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