Analysis of the magnetic field in the end region of induction motor

Sikora, R.; Lipiński, Wojciech; Gawrylczyk, K. M.; Gramz, M.; Gratkowski, Stanislaw; Pałka, Ryszard; Ziółkowski, Marek

doi:10.1109/tmag.1982.1061912

Cited by 9 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

Section: Fe Methods Applied For Linear Induction Motorsmentioning

confidence: 99%

“…The electric vector potential formalism was chosen for the calculations of the back iron power loss [29,74,75] (see Section 4.3). The same formalism was used to determine the magnetic field in the end regions of the induction motors as well as the motors' impedances [74,75]. This approach was also used for the formulation of the 3D equation for the scalar potential describing distribution of the electromagnetic field.…”

Section: Fe Methods Applied For Linear Induction Motorsmentioning

confidence: 99%

“…The electric vector potential formalism was chosen for the calculatio iron power loss [29,74,75] (see Section 4.3). The same formalism was used…”

Section: Figure 8 Average Thrust Per Unit Depth Versus Slip Frequency For a Lim From Figurmentioning

confidence: 99%

“…In order to determine the transverse effects of the current flowing in the reaction rail, another numerical FE model should be applied. This can be done using the electric vector potential T , defined by the formula rot T J  , where J denotes the current density vector [74,75]. The differential equation for the electrical vector potential can be written as follows (movement only in x-direction is allowed):…”

Section: Losses In the Reaction Railmentioning

confidence: 99%

See 3 more Smart Citations

Linear Induction Motors in Transportation Systems

Pałka

Woronowicz

2021

Energies

View full text Add to dashboard Cite

This paper provides an overview of the Linear Transportation System (LTS) and focuses on the application of a Linear Induction Motor (LIM) as a major constituent of LTS propulsion. Due to their physical characteristics, linear induction motors introduce many physical phenomena and design constraints that do not occur in the application of the rotary motor equivalent. The efficiency of the LIM is lower than that of the equivalent rotary machine, but, when the motors are compared as integrated constituents of the broader transportation system, the rotary motor’s efficiency advantage diminishes entirely. Against this background, several solutions to the problems still existing in the application of traction linear induction motors are presented based on the scientific research of the authors. Thus, solutions to the following problems are presented here: (a) development of new analytical solutions and finite element methods for LIM evaluation; (b) comparison between the analytical and numerical results, performed with commercial and self-developed software, showing an exceptionally good agreement; (c) self-developed LIM adaptive control methods; (d) LIM performance under voltage supply (non-symmetrical phase current values); (e) method for the power loss evaluation in the LIM reaction rail and the temperature rise prediction method of a traction LIM; and (f) discussion of the performance of the superconducting LIM. The addressed research topics have been chosen for their practical impact on the advancement of a LIM as the preferred urban transport propulsion motor.

show abstract