以地铁车辆用DC750V牵引变频器为例，采用IGBT作为主要开关元件设计了逆变器主电路及控制系统，并利用MATLAB/SIMULINK进行了仿真。
It is designed that the main circuit and control system using the IGBT as its switch element based on the DC750V traction transducer of metro vehicles. The system is also simulated by MATLAB/SIMULINK.
传感器信号以这样一种方式影响变频器，使牵引箔的速度保持不变。
The sensor signal affects the frequency converter in such a way that the draw-off speed of the foil remains constant.
履带式牵引机采用进口减速电机及变频器，具有结构合理，牵引力大，牵引稳定等优点。
Belt type drawing has applied imported deceleration motor and inverter, it has such advantages as reasonable structure, large drawing force, stable drawing, etc.
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