Starting and braking of asynchronous motors with parametric control
https://doi.org/10.46973/0201-727X_2025_1_174
Abstract
An electric drive with asynchronous electric motors with a short-circuited rotor is widespread enough due to operational reliability and sufficiently high energy characteristics. The authors propose a method for further improving the energy characteristics of an asynchronous electric motor in dynamic modes with control of the amplitude of the supply voltage. Based on a mathematical model of a generalized electric machine in fixed axes α and β, an algorithm has been developed to reduce electrical energy losses in the windings of an asynchronous electric drive in transient start and braking modes. Using the maximum principle and the Newton-Raphson method, the optimal functional dependence of the amplitude of the supply voltage of an asynchronous motor on the time of the transient process has been determined. The minimum square of the voltage supplying the electric motor is selected as an optimization criterion. Based on the calculation results, graphs of changes in currents, the electromagnetic moment of the angular velocity of rotation and electrical losses in the windings of the asynchronous motor with optimal control actions are obtained.
About the Authors
A. D. Petrushin
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Petrushin Alexandr Dmitrievich, Chair “Cars and Car Facilities”, Doctor of Engineering Sciences, Professor
A. I. Melikov
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Melikov Alimurad Ilaminovich, Chair “Cars and Car Facilities”, Postgraduate Student
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Review
For citations:
Petrushin A.D., Melikov A.I. Starting and braking of asynchronous motors with parametric control. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(1):174-181. (In Russ.) https://doi.org/10.46973/0201-727X_2025_1_174
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