Experimental Study of Overvoltage in the Winding of an Induction Motor Controlled by HF

The overvoltage created on the supply lines of the driven electric motors can cause harmful damage to the equipment. Sometimes these motors are supplied via unipolar cables, we want by this paper to study the influence of using these cables to supply an induction motor (IM) driven by techniques based on high frequencies on the creation of overvoltage. Two tests are then presented: In the first test, the system is powered directly by a frequency generator without using the single-core cable. In the second test, a single-core cable of different lengths is used between the power supply and the stator of IM. The experimental results obtained at the Algerian Energy and Intelligent Systems Laboratory (LESI), prove that the method proposed for this purpose is quite efficient.