In today's industry and daily life, people can find traces of motors everywhere. From steam turbine generators in thermal power plants using coal and petroleum as raw materials, to water turbine generators powered by water resources, to wind turbines powered by wind, to high-voltage transmission and distribution transformers, from factory From automatic production lines? Machine tools in workshops? Robots to household appliances in homes and even electric toys, motors are almost everywhere.
At present, the development of the motor manufacturing industry mainly has the following major trends:
(1) Large-scale. Single unit capacity is getting larger and larger, such as turbine generators of 600,000 kW and above.
(2) Miniaturization. In order to adapt to the requirements of miniaturization of equipment, the size of motors is getting smaller and lighter.
(3) Motors with new principles, new processes, and new materials are constantly emerging, such as brushless DC motors? Switched reluctance motors? Linear motors? Ultrasonic motors, etc.