电动机转速控制 motor speed control
- 通过改变变频器的输出电压可以控制被拖电动机的转速。
Variable speed motor drive (VSMD) is used to control the electrical machine by modifying the frequency of its output voltage. - 事实上,为了控制感应电动机的转速,三个三相电阻可以接入转子绕组。
In fact, an external three-phase resistor can thus be connected for the purpose of speed control of the induction motor. - 摘要针对电压型PWM存在的缺点,提出一种电流型脉宽调制方法,并在此基础上对异步电动机的转速控制系统进行分析。
Due to the disadvantages of voltage source PWM, a current source PWM is proposed, and a speed control system for induction motor based on current source PWM is analyzed.
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