Academia.eduAcademia.edu

Figure 5 – uploaded by Costică Nițucă

See full PDFdownloadDownload figure
Figure 6. Simulated and measured temperatures distribution over the inducto1

Figure 6 Simulated and measured temperatures distribution over the inducto1

Related Figures (8)

regime the thermal aspects become important. Figure 1. Test bench. (1) linear induction motor; (2) inductor; (3) asymmetrical pantograph; (4) copper rotating disk. supplementary force Fim). Thus, the motor offers the possibility to control the contact force according The linear motor is a three-phase asynchronous machine with a plate mobile armature (1) from copper (Fig. 2). The motor has a bilateral structure, having two inductors, 2a and 2b, (a double sided linear motor) with the ring windings in 24 slots, yielding the coils (3). The mobile plate armature is vertically placed and it has an oscillating movement (4) on a distance of about 60..90 mm and an air gap 6 = 4 mm. It is important to notice that some special effects of the linear motors (the edge effects, the transversal effects) are neglected, in order to simplify the thermal model. The linear motor is a three-phase asynchronous machine with a plate mobile armature (1) from
regime the thermal aspects become important. Figure 1. Test bench. (1) linear induction motor; (2) inductor; (3) asymmetrical pantograph; (4) copper rotating disk. supplementary force Fim). Thus, the motor offers the possibility to control the contact force according The linear motor is a three-phase asynchronous machine with a plate mobile armature (1) from copper (Fig. 2). The motor has a bilateral structure, having two inductors, 2a and 2b, (a double sided linear motor) with the ring windings in 24 slots, yielding the coils (3). The mobile plate armature is vertically placed and it has an oscillating movement (4) on a distance of about 60..90 mm and an air gap 6 = 4 mm. It is important to notice that some special effects of the linear motors (the edge effects, the transversal effects) are neglected, in order to simplify the thermal model. The linear motor is a three-phase asynchronous machine with a plate mobile armature (1) from
steel, iron, etc.), and the heating analysis could be complex. 3. The heating differential equation for the linear motor
steel, iron, etc.), and the heating analysis could be complex. 3. The heating differential equation for the linear motor
Tab. 1. Setting parameters used for the thermal simulation plate armature. The setting parameters used for the thermal simulations are presented in Tab 1. 4. Thermal modeling of the double sided linear induction motor
Tab. 1. Setting parameters used for the thermal simulation plate armature. The setting parameters used for the thermal simulations are presented in Tab 1. 4. Thermal modeling of the double sided linear induction motor
Figure 4. Distribution of the temperature over the linear induction motor with a sectioned plate armature
Figure 4. Distribution of the temperature over the linear induction motor with a sectioned plate armature
Figure 5. Measured points of the temperature on the inductor Figure 6 shows the simulated and measured temperatures for the motor with full plate armature. The estimation of the temperature increase of the windings and of the other parts of the motor is made with a locked armature. The inductor is supplied at rated voltage and rated frequency from a three-phase symmetrical supply system (by a three-phase autotransformer). The measurements are on the inductor denoted (2b) because it heats up more intensely then the inductor (2a) (about 2-3%) due to the constructive imperfection of the motor. The estimation of the temperature increase of the windings and of the other parts of the motor is made with a locked armature and for a force of 70 N. There is no cooling system considered. The temperatures have been measured using an infrared camera type FLIR E40.
Figure 5. Measured points of the temperature on the inductor Figure 6 shows the simulated and measured temperatures for the motor with full plate armature. The estimation of the temperature increase of the windings and of the other parts of the motor is made with a locked armature. The inductor is supplied at rated voltage and rated frequency from a three-phase symmetrical supply system (by a three-phase autotransformer). The measurements are on the inductor denoted (2b) because it heats up more intensely then the inductor (2a) (about 2-3%) due to the constructive imperfection of the motor. The estimation of the temperature increase of the windings and of the other parts of the motor is made with a locked armature and for a force of 70 N. There is no cooling system considered. The temperatures have been measured using an infrared camera type FLIR E40.
Tab. 2. Simulated temperatures, measured temperatures and errors for the motor with the full plate armature Figure 7 shows the simulated and measured temperatures for the motor with sectioned plate
Tab. 2. Simulated temperatures, measured temperatures and errors for the motor with the full plate armature Figure 7 shows the simulated and measured temperatures for the motor with sectioned plate
Tab. 3. Simulated temperatures, measured temperatures and errors for the motor with sectioned plate armature
Tab. 3. Simulated temperatures, measured temperatures and errors for the motor with sectioned plate armature
Related topics:
PhysicsLinear Induction MotorThermal ScienceInduction Motor
580 California St., Suite 400
San Francisco, CA, 94104
© 2025 Academia. All rights reserved