轻工行业中的变频器系统设计与应用第6讲变频器在塑料挤出机械中的应用

在塑料机械传动的发展史上，曾相继采用过直流调速、电磁调速，但目前已经越来越多地采用了交流变频调速。综合多年的变频使用经验，采用变频器的最大好处就是节约能源量和提高工艺性能。

Design and Application of AC Inverter in Light-industry Machinery

In the development history of the plastic mechanical drive, DC converter and electromagnetic speed controller had been introduced one after another, but now more and more industries use AC variable frequency speed regulation. Many years of experience with the use of frequency shows that the greatest advantage of using inverter is saving energy and improving process performance.