Slip Control by Identifying the Magnetic Field of the Elements of an Asynchronous Motor

The article deals with the issue of measuring the slip of an asynchronous motor based on the identification of the magnetic field of rotating elements and the rotating field of the stator of an asynchronous motor. By measuring the magnetic field of the rotating elements of the asynchronous motor and the rotating field of the stator, it is possible to identify the corresponding frequencies. Based on this, it is possible to control the slip of the asynchronous motor. This is especially important from the point of view of speed control, reduction of heat losses and from the point of view of increasing the service life of the elements of the frequency converter. Due to the above facts, the measurement was performed on an asynchronous motor with a frequency converter. The measurement results are given in the form of the frequency spectrum of the asynchronous motor and in the form of the value corresponding to the slip of the asynchronous motor. The article also describes the design of a system for controlling the slip of an asynchronous motor.