基于环链电动葫芦的矢量变频调速控制研究与设计

Research and Design on Control System of Chain-electric Hoist Based on Vector-variable-frequency Speed Control System

将带转矩内环的转速、磁链闭环矢量控制原理应用于环链电动葫芦中异步电动机转速、转矩控制，在空间矢量坐标变换的基础上，建立了三相异步电动机的磁链观测模型。采用simulink模块进行系统仿真，结果表明异步电动机的调速性能得到了大幅度的提高。

Apply theory of rotation speed and magnetism chain＇s vector control with torque＇s in-loop on chain-electric hoist＇s motor. Use vector control method on motor in order to control speed and torque. Build magnetism chain observation model on the basis of space vector coordinate change. At the same time,simulate system with simulink model. The result indicated that the adjust velocity＇ s character of asynchronous motor has improved obviously.