利用变频调速技术对起重机的改造设计

Improved Design of Crane with the Technology of Frequency Conversion and Timing

变频调速具有运行平稳、定位精度高、节能、维护工作量小、自动控制性能好、提高起重机的作业效率等优点。本设计介绍了使用变频技术改造起重机电气系统的有关问题,如电动机、变频器、及其辅件的选用及有关参数的计算方法。

The technology of frequency conversion and timing has many advantages, such as smooth running, high precision of orientation, saving energy, less workload of maintenance, better performance of auto - control, improving the efficiency and so on. The paper introduces the problems of using the frequency conversion technology to improve the performance of electric system of crane, such as, the electromotor, the transducer, selecting of equipment, and the calculation way of relative parameters.