РОЗВИТОК МЕТОДУ МОМЕНТІВ ДРОБОВОГО ПОРЯДКУ ТА РОЗРОБКА АЛГОРИТМІВ НА ЙОГО ОСНОВІ ДЛЯ ДІАГНОСТИКИ ЕЛЕКТРОДВИГУНІВ

Abstract. The work improves the fractional order moment method for monitoring the presence of rotor defects in induction motors. On its basis, an algorithm for diagnosing the rotor of induction motors has been developed. As a result of simulation modeling in the MATLab software environment, time dependences of the phase currents of the stator of an induction motor were obtained in the absence of a defect and in the event of damage to 1 rotor core. For the above cases, based on the proposed algorithm, generalized mean functions (GMFs) were calculated and their dependences on the order of moments were plotted. It was found that the GMF for an induction motor with damage to 1 rotor core has a greater slope than the GMF of an induction motor without a defect. According to the proposed algorithm, this is a diagnostic symptom of a defect in the rotor of an induction motor.