双馈电机在3MW齿轮箱试验台中的应用

在分析同步电机、双馈电机的特性基础上,提出了一种采用双馈电机对拖的方式来实现3 MW齿轮箱的试验方法.采用2台双馈电机和1台变频电机进行控制,变频电机控制试验台的速度以及补偿试验台的功率损耗,分别控制双馈电机转子的电流和频率来达到控制负载功率的目的.该方法具有良好的控制精度、高效节能,投资成本低.

Application of Doubly-fed Induction Motor in 3 MW Gearbox Test Bench

On the base of analyzing features of synchronous motor and doubly-fed induction motor,a method which is used to complete the test of 3 MW gearbox by dragging two doubly-fed induction generators themselves was brought forward.This method uses two doubly-fed induction motors and a variable-frequency motor to control.The variable-frequency motor controls the speed of test bench and equalizes the power losses of test bench.The current and frequency of doubly-fed induction motor′s rotor are controlled to control the load power.This method has a excellence control accuracy,is energy-efficient and low investment cost.