METHOD OF DETERMINING THE START TIME OF INDUCTION MOTORS IN THE CONTROL OF RESISTOR-THYRISTOR MODULES

• Дата: 2015
• Автори: Lobov, V. I., Lobova, K. V.
• Формат: Стаття
• Мова: Russian
• Опубліковано: National Technical University "Kharkiv Polytechnic Institute" and State Institution “Institute of Technical Problems of Magnetism of the National Academy of Sciences of Ukraine” 2015
• Теми: induction motor; resistor-thyristor module; start; regulation opening angle of thyristor; moment of inertia; static moment; [62-83; 621.313.333]-57-592; асинхронный электродвигатель; резисторно-тиристорный модуль; пуск; регулирование угла открывания тиристора; момент инерции; статический момент; асинхронний електродвигун; резисторно-тиристорний модуль; регулювання кута відкривання тиристора; момент інерції; статичний момент
• Онлайн доступ: http://eie.khpi.edu.ua/article/view/2074-272X.2015.4.07
• Назва журналу: Electrical Engineering & Electromechanics

Purpose. An electric general-purpose drive with asynchronous motor is proposed. For motor control in stator and rotor, circuits used resistors and thyristors. These elements included together in various ways. This allows to get a variety of power converter circuit with resistor-thyristor modules. Methodology. Taking into account the technical requirements for industrial machinery developed an analytical method for determining the run-up controlled induction motor. Formed starting modes by changing the value of the equivalent resistor-thyristor modules. Using logic synthesis and function of thyristors switching to determine the equivalent value of resistor-thyristor modules. Scientific novelty. It lies in the fact that the proposed method of calculation to determine the run-up in the limited amount of transient current and torque of the motor. The total moment of inertia and the static moment of the drive do not have a significant impact on the maximum value of the transient electromagnetic torque. Most of these options affect the transition process, the oscillation frequency of the electromagnetic torque and the motor speed. Practical value. The method used for calculating allows to select the simplest laws of launch control actuator and apply open-loop control system without increasing the cost of the power converter, so it is of practical importance.