The importance of improving the dynamic performance of servo motors
With the wide application of servo motors in the industry, the design and research of high dynamic performance servo drives and servo motors will become a hot spot in domestic research. At the same time, how to improve the dynamic characteristics of servo motors has become an urgent need to be solved. The problem.
The performance indicators of the servo system in the dynamic adjustment process are called dynamic performance indicators, such as overshoot, follow speed, following accuracy, adjustment time, anti-interference ability and so on.
The servo system was first applied to the military and aerospace fields. With the footsteps of industrialization, it gradually entered the industrial field and the civilian field. In the production practice, the application of the servo system has been very extensive.
1. In CNC machine tools, the use of high-end permanent magnet AC servo instead of asynchronous variable frequency drive seems to have become the standard. Since the 1990s, European and American countries have been committed to the development and application of high-speed CNC machine tools. At the same resolution, the feed rate of the workbench has been greatly improved. Today's CNC system tools are characterized by high speed, high precision, high dynamics and high rigidity. We have already seen the application of domestic servos on economical CNC machine tools, but the domestic servos on medium and high-end machine tools still can't meet the requirements. Performance is an important aspect. Stability and brand effect are also obstacles that cannot be crossed in a short time.
2. Robots are also a field in which servo systems are widely used. Industrial robots have multiple degrees of freedom. Therefore, each industrial robot requires 3-4 servo motors and more than 10 servo motors. At present, the number of industrial robots has exceeded 1 million, and the annual demand is still increasing substantially. Most of the international industrial robot giants have their own dedicated servo packages. In recent years, domestic servo manufacturers have begun to enter the robot industry, although there is still a big gap in performance.
3, the textile industry's servo application ratio is very low, in order to improve production efficiency, some textile machinery began to use high-end servo technology, the price factor caused the servo system in the textile industry has not been widely used. If the domestic servo maintains the price advantage and improves the product performance, it will greatly promote the development of the entire industry.
In addition, printing machinery, packaging machinery, medical equipment,
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