In the era of electrification and information technology, higher requirements have been placed on motors in terms of performance,
reliability and capacity. AC variable frequency speed control systems and variable frequency motors. High-power brushless DC motors.
Permanent magnet synchronous brushless motors have been greatly developed.At the same time, with the development of emerging
industries, micro-motors have also become the highlight of the development of the motor industry, and are the key products for the
development of the electrical and electronic industry (motors) in China. Rare earth permanent magnet motors and bearingless
motors are also new trends in the development of motor technology.
In line with this, there have been new developments in motor dragging, and higher requirements have been put on the dragging
system, such as the need to improve the accuracy of processing and the speed of work, and the need for rapid start. Speed and
automation of the entire production process, this requires a set of automatic control equipment to form an automated electric drag
system. With the continuous development of automatic control theory, the adoption of semiconductor devices and power electronics
technology, as well as the development and adoption of numerical control technology and computer technology, these highly
demanding dragging systems are constantly being improved and improved.
In summary, to date, the development of electric dragging technology has many advantages unmatched by other dragging methods.
It has simple, convenient, fast, and efficient control for starting, braking, reversing, and speed regulation. There are many types of
motors and various operating characteristics to meet the requirements of various types of production machinery. The parameters of
the entire system are Detection and signal conversion and transmission are convenient and easy to achieve optimal control. Therefore,
electric power drag has become the basis of electrical automation in the national economy.
