Application of Rare Earth Permanent Magnet in DC Non adjustable Speed Motor

Application of Rare Earth Permanent Magnet in DC Non adjustable Speed Motor
The acquisition and application of electric energy is an important symbol of the progress of human society. Electric energy is an indispensable form of energy in modern society, and it is widely used in any industry. The most common form of the application of electric energy is to convert electric energy into mechanical energy. The conversion method is the application of motor. The quality of motor converting electrical energy into mechanical energy is related to whether the electrical energy can be fully utilized, the efficiency and operation of the driven equipment. Therefore, people have been constantly developing motors that meet the requirements. Reviewing the development of motor, people from DC motor to AC motor have been striving for the progress of motor. Until the emergence of neodymium iron boron permanent magnet, people began to produce rare earth permanent magnet motors with the support of advanced materials, which also led to the improvement of related industrial products, making electromechanical integration reach a new level.
China Academy of Launch Vehicle Technology has successfully applied rare earth permanent magnet motors to rockets and missiles through years of research and application of rare earth permanent magnet motors and control systems. In line with the strategic policy of "establishing the institute with military products and prospering the institute with civilian products", Beijing Wanyuan Industrial Co., Ltd., while developing steadily as a whole, pays more attention to giving play to its scientific research and production advantages, constantly explores and develops new fields, and applies the mature high-tech of military products to the field of civilian products industry. The company will organize a strong scientific research team and invest a lot of manpower and material resources in developing rare earth permanent magnet wind turbines At the same time of rare earth permanent magnet drive motor for light rail and rare earth permanent magnet motor for petroleum exploitation, develop and produce high-power rare earth permanent magnet DC brushless speed regulating motor.
Rare earth permanent magnet brushless dc motor is a combination of modern materials science, electronic power science and motor control theory. Rare earth permanent magnet motor uses rare earth permanent magnet materials to generate magnetic field, replacing the magnetic field generated by current excitation of traditional motors, which makes rare earth permanent magnet motors have obvious characteristics such as simple structure, reliable operation, small size, light weight, low loss, high efficiency, flexible appearance and size of motors. Therefore, rare earth permanent magnet motors have developed rapidly in recent years. Due to the rich rare earth resources in China and the rapid development of rare earth permanent magnet in China, the product quality of rare earth permanent magnet materials has been continuously improved and the cost price has been continuously reduced, which has laid a solid foundation for manufacturing high-power rare earth permanent magnet motors, making our developed rare earth permanent magnet motors have certain competitive advantages in the domestic and international markets.
China is now the largest elevator consumer in the world. With the continuous development and improvement of China's national economy, the demand for high-performance elevators has nearly expanded. But now the high-speed and high-performance elevator host basically depends on imports. In order to develop rare earth resources in China and expand the application market of rare earth permanent magnet in China, our company's Technology Innovation Center is vigorously developing rare earth permanent magnet DC brushless speed regulating motor, which is used in elevator host system products. Its system performance is in the leading position in the world, saving about 40% energy compared with traditional elevator systems. It is an ideal replacement product for domestic elevator host production. The outstanding features of the system are: wide speed range, more than 1000:1, and higher performance than the current advanced AC VVVF frequency conversion system. The start, operation and control of the elevator are more stable and can achieve high-precision control. The motor has the characteristics of low speed, high torque, high power factor, small size, low requirements for supporting environment and obvious energy-saving effect. The working noise and vibration of the whole elevator system are very small, the operation is stable, and the requirements for human comfort are met. Due to the inherent characteristics of the permanent magnet motor, it has the self-locking ability in case of sudden power failure, which makes the elevator run more safely and reliably. Because of the characteristics of low speed and large torque, the elevator host is simple in structure and easy to maintain. The development of this product will enable China's elevator industry to enter a new historical stage.