Khanahmedova S., Jeyhun A.
MODELING OF THE MAIN ASYNCHRONOUS MOTOR PARAMETERS *
Аннотация:
the article considers the modeling of the main parameters of an asynchronous motor, taking into account the nominal values of power, voltage, and current, alternating current frequency, and the number of pairs of poles determining the rotation speed of the magnetic field. Dynamic simulation of an asynchronous motor in MATLAB/Simulink is an effective way to study its operation and analyze its characteristics. MATLAB/Simulink asynchronous motor simulation provides powerful tools for studying its dynamics and control.
Ключевые слова:
asynchronous motor, dynamic simulation, MATLAB, Simulink, rotation speed, magnetic field, voltage, current
Modeling an asynchronous motors main parameters includes several key stages and parameters. Here are the main steps and parameters to consider:1. The main parameters of the engine:- Rated power (P), which determines the power that the motor can produce on the shaft.- Rated voltage (U), or the operating voltage at which the motor operates.- Mains frequency (f) or AC frequency, usually 50 or 60 Hz.- The number of poles (p), which determines the rotation speed of the magnetic field.- The rated current (I) at which the motor operates at its rated power.An asynchronous motor can be modeled using an equivalent circuit that includes resistors and inductors that describe the stator and rotor windings, as well as magnetic field parameters. When modeling, it is necessary to use equations describing currents and voltages in the windings, as well as the interaction between the stator and the rotor. In this case, parameters are taken into account for calculation, such as the resistance of the stator windings (Rs) and rotor (Rr), which depends on the sliding frequency, Inductance of the stator, rotor and magnetic coupling, respectively (Ls, Lr, Lm), Losses (Rpot) heating effects that affect efficiency. For simulation, you can use software such as MATLAB/Simulink or special programs for analyzing electrical machines to conduct dynamic modeling and performance analysis.Dynamic simulation of an asynchronous motor in MATLAB/Simulink is an effective way to study its operation and analyze its characteristics. The following steps will help you create an asynchronous motor model:1. Creating a model - opening the Simulink section, and adding the necessary components.2. Using the Simscape Electrical library to add the following components:- Asynchronous motor unit "Asynchronous Machine" (or equivalent).- Network source - the "Three-Phase Voltage Source" unit for connection to the engine.The load resistor is a "Resistive Load the template unattended the load on the shaft.If necessary, you can add control units such as a PID controller. Fig. 1 shows a model for creating an electrical circuit where the source is connected to the stator of the motor, and the rotor is connected to the load. Next, you can configure the motor parameters: rated power and voltage, number of poles, stator and rotor resistances, inductance (Fig. 2).Fig. 1. Simulink model of asynchronous motorFig. 2. Asynchronous motor parametersIf you need to create a model using MATLAB commands, you can use an example code that initializes the parameters of an asynchronous motor:%Definition of asynchronous motor parametersP = 5, % Power, kWU = 400, % Voltage, Vf = 50, % Frequency, Hzp = 4, % Number of poles% Creating an open system model(Simulink),% Adding components (example for basic configuration)% ... (code for adding blocks)% Runningsim simulation(asynchronous_motor_model),MATLAB/Simulink asynchronous motor simulation provides powerful tools for studying its dynamics and control.
Номер журнала Вестник науки №1 (82) том 2
Ссылка для цитирования:
Khanahmedova S., Jeyhun A. MODELING OF THE MAIN ASYNCHRONOUS MOTOR PARAMETERS // Вестник науки №1 (82) том 2. С. 1131 - 1134. 2025 г. ISSN 2712-8849 // Электронный ресурс: https://www.вестник-науки.рф/article/20749 (дата обращения: 24.06.2025 г.)
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