scholarly journals Study of the Longitudinal Edge Effect in Bilateral Linear Induction Machines with Liquetallic Rotor

2019 ◽  
pp. 240-249
Author(s):  
Ivan V. Kizhaev ◽  
Viktor N. Timofeev ◽  
Maxim Y. Khatsayuk
Keyword(s):  
Mathematical Modeling ◽  
Edge Effect ◽  
Induction Machine ◽  
Induction Machines ◽  
Comparative Assessment ◽  
Linear Induction ◽  
Longitudinal Edge ◽  
Electromagnetic Characteristics ◽  
Linear Induction Machine ◽  
Linear Induction Machines

This article analyzes the electromagnetic field of a flat linear induction machine with an analytical method of mathematical modeling. Graphs of the electromagnetic characteristics of the machines were obtained, taking into account the longitudinal edge effect at various values of slip and coefficients of quality factor. Also made a comparative assessment of the effect of the longitudinal edge effect on the performance of the machine

scholarly journals Linear Induction Motors without Longitudinal Edge Effect

2019 ◽  
Vol 5 (2) ◽  
pp. 60-69 ◽  
Author(s):  
Vladimir A. Solomin ◽  
Andrei V. Solomin ◽  
Anastasia A. Chekhova ◽  
Larisa L. Zamchina ◽  
Nadezda A. Trubitsina
Keyword(s):  
Edge Effect ◽  
Induction Motors ◽  
Magnetic Levitation ◽  
Track Structure ◽  
Linear Induction ◽  
Linear Induction Motor ◽  
High Speeds ◽  
Longitudinal Edge ◽  
Secondary Element ◽  
Linear Induction Motors

Background: At high speeds of motion of the magnetic-levitation transport (MLT), linear induction motors (LIM) have a secondary longitudinal edge effect (SLEE). SLEE occurs when magnetic field of inductor interacts with the currents of the secondary element (SE) outside the MLT crew. SLEE reduces the efficiency of traction LIM. Therefore, the task of reducing the influence of SLEE is relevant. Aim: Development and research of a linear induction motor without a secondary longitudinal edge effect. Methods: To achieve this aim, new designs of linear induction motors have been proposed, which do not have a SLEE. The secondary element of the LIM (track structure of the MLT) is made of cylindrical conductive rods installed with the possibility of rotation. Traction LIM of the MLT equipped with two brushes that close the rods of the SE within the length of the inductor. When the MLT crew moves, the rods outside the inductor are not closed by brushes and there is no current in them. There will be no SLEE. Another method to solve this problem is using reed switches to close and open the rods of the secondary element. Results: The possibility of increasing the efficiency of the LIM has been achieved.

Energy Harvesting With Single-Sided Linear Induction Machines Featuring Secondary Conductive Coating

2019 ◽  
Vol 66 (6) ◽  
pp. 4880-4890 ◽  
Author(s):  
Michael Flankl ◽  
Lucas de Oliveira Baumann ◽  
Arda Tuysuz ◽  
Johann W. Kolar
Keyword(s):  
Energy Harvesting ◽  
Induction Machines ◽  
Linear Induction ◽  
Conductive Coating ◽  
Linear Induction Machines
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