【摘要】 介绍了变频调速技术的优点及在起重机中的应用,并着重对两电平控制、三电平控制的原理和优缺点进行了比较,描述了变频器静止型自学习的新特点。最后,分析和展望了对三电平矢量变频器在国内港口中的应用前景。更多还原

【Abstract】 This paper proposes the advantage of vadable frequency drive technology and its application in port cranes.This paper also compares the principles and andvantages of two-level control and three control technology.This paper introduces the motionless autotuning,which is a new feature,of three-level vector inverter.Final,this paper analyses the prospect of the application of three-level inverters in domestic ports.更多还原