Thermal model and analysis of wound rotor induction machine

2012 ◽  
Author(s):  
Aldo Boglietti ◽  
Andrea Cavagnino ◽  
Mircea Popescu ◽  
David Staton
Keyword(s):  
Thermal Model ◽  
Induction Machine

Thermal Model and Analysis of Wound-Rotor Induction Machine

2013 ◽  
Vol 49 (5) ◽  
pp. 2078-2085 ◽  
Author(s):  
Aldo Boglietti ◽  
Andrea Cavagnino ◽  
Mircea Popescu ◽  
Dave Staton
Keyword(s):  
Thermal Model ◽  
Induction Machine

scholarly journals Thermal Modelling and Analysis of A 10HP Induction Machine Using the Lumped Parameter Approach

2021 ◽  
Vol 13 (6) ◽  
Author(s):  
Oti S.Ejiofor ◽  
◽  
Awah Chukwemeka ◽  
Chibuzo Nnonyelu ◽  
Ogbonnaya I.Okoro ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Life Span ◽  
Thermal Model ◽  
Research Work ◽  
Induction Machine ◽  
Thermal Modelling ◽  
Thermal Limits ◽  
Lumped Parameter ◽  
Parameter Approach ◽  
Different Parts

The essence of this research work is to develop a thermal model for an induction machine that will enable the prediction of temperature in different parts of the machine. This is very important first to the manufacturer or designer of an induction machine because with these predictions one can decide on the insulation class limits the machine belongs to. Also modern trends in the construction of machines is moving in the direction of making machines with reduced weights, costs and increased efficiency. In order to achieve this, the thermal analysis becomes very crucial in deciding on what types of insulators and other materials that would be used to make these machines. In industries, the knowledge of the thermal limits of machines if well utilized increases the life span of the machines and reduces downtime; thereby increasing production and profit. Specifically, this paper (i) predicted the temperature limits of the induction machine and its components, (ii) developed an accurate thermal model for an induction machine, (iii) predicted the temperature in different parts of the induction machine using the thermal model and software program and lastly (iv) investigated how the machine symmetry is affected by the nodal configuration.

scholarly journals Development and thermal modeling of an induction machine

2019 ◽  
Vol 8 (4) ◽  
pp. 500
Author(s):  
Oti Stephen Ejiofor ◽  
Ugwu Justin ◽  
Nnadi Damian Benneth ◽  
Ogbuefi Uche
Keyword(s):  
Induction Motor ◽  
Reference Frame ◽  
Temperature Rise ◽  
Thermal Model ◽  
Research Work ◽  
Induction Machine ◽  
Operating Conditions ◽  
Electrical Behavior ◽  
Stator Current ◽  
Physical Measurements

In induction machines, the major concern is the temperature rise since it determines the maximum loading, in an attempt to avoid insula-tion deterioration and eventual loss of motor life. The effect of excessive heat in the motor stator and rotor windings and the stator mag-netic circuit can degrade the developed performance of the machine and also affect the motor loading and life span if not dispensed properly. This research work examines the thermal model for estimating the stator and rotor temperatures in cage induction motor. A state-variable model of the induction is used. The twin-axis stator reference frame is used to model the motor’s electrical behavior, because physical measurements are made in this reference frame. The thermal model is derived by considering the power dissipation, heat transfer and rate of temperature rise in the stator and rotor. The non-linear equations for electrical behavior of the motor and the thermal state equations for the stator and the rotor are solved using the MATLAB/Simulink blocks. This is to give room for the determination of the temperature of the stator and rotor windings inside the induction machine so as to evaluate the thermal stability of the induction motor and to check whether the insulation of the copper windings is sufficient at different operating conditions. It was found out from the thermal model analysis that the temperature of the stator and rotor windings increases due to stator and rotor copper losses which depend on the stator current. As the stator current is increased by increasing the torque, the temperature of each element is consequentially made to increase.  

Sign in / Sign up

Export Citation Format

Share Document