CALCULATION OF MECHANICAL CHARACTERISTICS OF INDUCTION MOTOR USED IN TEXTILE MACHINERY AT THE ENTERPRISE RUSHAN TEKS IN BUKHARA CITY

2018 ◽  
pp. 275-277
Author(s):  
N. B. Pirmatov ◽  
A. T. Panoyev
2006 ◽  
Vol 302-303 ◽  
pp. 725-0
Author(s):  
Gao Liang ◽  
Ke Ming Yin ◽  
Yin Hui

In this paper, based on the elastic foundation beam theory, the influence rules of every combination of loads and operating modes for ballastless track of Linear Induction Motor (LIM) track traffic are studied. In addition, according to the construction character of prefabrication and cast-in-situ, the rules of how construction influences the mechanical characteristics of the ballastless track structure are given. On the basis of synthetical analysis of the distribution rules of ballastless track’s internal force, some appropriate suggestions for design and construction are put forward.


2021 ◽  
pp. 5-17
Author(s):  
R. Chuienko ◽  

An asynchronous electric motor with a short-circuited rotor is the most common means of converting electrical energy into mechanical energy in the electric drive of working machines in industry and agriculture. Modern methods of increasing the energy efficiency of induction motors with short-circuited rotor are aimed at finding with the help of computer technology the optimal solutions in the processes of their design, production and operation using new high-performance materials in machines. Such methods do not change the physical processes occurring in the induction motor, ie are passive. However, despite numerous improvements and scientific achievements, technical and economic indicators of induction motors still do not meet modern energy requirements. It is necessary to use ways to increase the energy efficiency of induction motors while maintaining their simplicity and reliability. It is proposed to use internal capacitive compensation of reactive power of induction motors. The aim of the research is to develop a mathematical model of an induction motor with internal capacitive reactive power compensation in the MathLab Simulink software environment for the calculation of operating and mechanical characteristics. A mathematical model of an induction motor with internal capacitive reactive power compensation in the MathLab Simulink software environment using the theory of electric circuits has been developed. The developed mathematical model allows to study the working and mechanical characteristics of an induction motor with internal capacitive compensation of reactive power. Numerical researches of characteristics of the induction motor with internal capacitive compensation of reactive power are carried out and their comparison with corresponding characteristics of the basic induction motor is carried out.


2020 ◽  
Vol 216 ◽  
pp. 01121
Author(s):  
Kamoliddin Alimkhodjaev ◽  
Murakam Mirsaidov ◽  
Malika Khalikova ◽  
Jasurbek Nizamov

In order to conduct model experimental studies of the mutual influence of electromagnetic and mechanical transient processes of starting up inertial vibration drives with an asynchronous motor, its mathematical model is being developed. The analytical dependence of the dynamic mechanical characteristics of the vibrator at various values of the rotor acceleration is determined. The mathematical model uses the dynamic mechanical characteristics of an induction motor as a torque.


2020 ◽  
Vol 178 ◽  
pp. 01011
Author(s):  
Yuri Mikhailovich Frolov ◽  
Valery Petrovich Shelyakin ◽  
Nikolay Vasilievich Sitnikov ◽  
Sergey Aleksandrovich Goremykin ◽  
Dmitry Aleksandrovich Tonn

Writing the differential equations of an asynchronous electric motor on the basis of a generalized electric machine in different coordinate axes can not only reduce the number of model equations, but also introduce various factors in the mathematical description that increase the modeling accuracy. It is proposed to write the equations of the mathematical model of an induction motor taking into account the saturation of the magnetic circuit and solve them using the Matlab application package. The proposed approach improves the accuracy of calculating the mechanical characteristics of an asynchronous electric drive.


2001 ◽  
Vol 120 (5) ◽  
pp. A112-A112 ◽  
Author(s):  
J CURRY ◽  
G SHI ◽  
J PANDOLFINO ◽  
R JOEHL ◽  
J BRASSEUR ◽  
...  

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