首页>
外国专利>
System and method for determining stator winding resistance in an AC motor using motor drives
System and method for determining stator winding resistance in an AC motor using motor drives
展开▼
机译:使用电动机驱动器确定交流电动机中定子绕组电阻的系统和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A system and method for determining the stator winding resistance of AC motors is provided. The system includes an AC motor drive having an input connectable to an AC source and an output connectable to an input terminal of an AC motor, a pulse width modulation (PWM) converter having switches therein to control current flow and terminal voltages in the AC motor, and a control system connected to the PWM converter. The control system generates a command signal to cause the PWM converter to control an output of the AC motor drive corresponding to an input to the AC motor, selectively generates a modified command signal to cause the PWM converter to inject a DC signal into the output of the AC motor drive, and determines a stator winding resistance of the AC motor based on the DC signal of at least one of the voltage and current.
展开▼