起重机变频传动及其调速系统综述（上）

由于起重机的特殊性和高性能的要求,使其应用变频器起步较晚,直到上世纪80年代后期才开始采用变频器进行调速控制。本文对起重电动机四象限运行的特点、位能负载的电动机转矩特性、起重用变频器的专用化特点及其代表产品等问题进行了详细的综述,最后对起重变频器的重要应用问题作了深入分析和展望。

Abstract：Due to the particularity and high performance requirements of crane, the application of VFD for speed control started late until the late 1980＇s. In this paper, many research aspects are summarized in detail such as： the four-quadrant operation characteristics of lifting motor, the motor torque characteristics, the customization features of VFD for crane, the representative products in this field. Finally, in-depth analysis and prospects of application problems of VFD for crane are introduced.

起重用变频器，四象限运行特性，位能负载，直接转矩控制，Inverter for crane，Four-quadrant operation characteristics，Potential load，Direct torque control（DTC）。

起重机变频传动及其调速系统综述（上）。