随着电力电子技术的发展.在八十年代解决了过去几十年间未能解决的问题。成功地推出了使交流电动机可以实行调频调压的调速装置,即所谓的VVVF变频调速器。用以对三相交流鼠笼式电动机进行调速控制。它的应用范围是广泛的、多方面的。即可在节能为目的的各种风机、水泵、压缩机方面,也可在设备制造工艺、生产工艺过程 With the development of power electronics technology, the problems that have not been solved in the past decades have been solved in the 1980s. Successfully introduced the AC motor can be implemented FM voltage regulator speed control device, the so-called VVVF inverter. For three-phase AC squirrel-cage motor speed control. Its range of applications is extensive and multifaceted. You can save energy for the purpose of a variety of fans, pumps, compressors, but also in equipment manufacturing processes, production processes