The Switched Reluctance Electric Machine with Constructive Asymetry

Petrushin, A. D.; Tchavychalov, Maxim; Miroshnichenko, Ekaterina

doi:10.11591/ijpeds.v6.i1.pp86-91

Cited by 9 publications

(3 citation statements)

References 2 publications

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“…However, when the air gap decreases, the radial forces of interaction between the stator and the rotor increase, caused by an increase in the unevenness of the magnetic conductivities between the teeth of the excited phases. To reduce this negative factor, a number of scientists have developed appropriate measures [12][13][14].…”

Section: Fig 1 Clvd In Longitudinal Sectionmentioning

confidence: 99%

Reduction of the pull effect of a cylindrical linear synchronous motor

et al. 2020

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A theoretical and experimental study of the effect of gravity, which occurs in a cylindrical linear synchronous motor between the secondary element and the inductor, was carried out. As a result, the forces of mechanical friction of the secondary element on the inductor are formed, which entails touching the secondary element on the surface of the inductor. An unfavourable result is a weakening of the power force that is working for a cylindrical linear synchronous motor. Two different inductor designs for a cylindrical linear synchronous motor have been studied. When solving this problem, we used an approach based on a combination of the field theory method and the theory of electric circuits. The forces of gravity, friction, and force between the secondary element and the inductor for these structures are determined. Experimentally, it was found that the pull force significantly weakens the working force of the engine. Based on the results obtained, conclusions were drawn about the need to change the design of the inductor. The design change of this element consists in the use of a non-magnetic intermediate centralizer, which is inserted between two sliding bearings located at the ends of each module of a cylindrical linear synchronous motor. Also, changes were made to the design of the magnetic circuit, in which instead of one slot for a three-phase winding system, three symmetrical slots were made, each for its own phase of the three-phase winding. As a result, the magnetic system of the engine in question became axisymmetric. The measures taken to change the design of the engine in question allowed us to dramatically reduce the effect of gravity. As a result, the specific force has increased significantly.

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Section: Fig 1 Clvd In Longitudinal Sectionmentioning

confidence: 99%

Reduction of the pull effect of a cylindrical linear synchronous motor

et al. 2020

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“…Automated drives based on switched-reluctance motors (SRM) have become an alternative to electric drives with AM for a number of applications both in mechanical engineering and in other areas of industry [1][2][3][4]. Recently, there have been quite a lot of published studies aimed at eliminating the existing shortcomings of electric machines of the switched-reluctance type and improving their energy efficiency [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Optimization algorithms in the design of switched-reluctance machines

Shevkunova

2021

E3S Web Conf.

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Currently, the level of industrial development is determined by the intellectual capacity of the equipment used. To increase the energy efficiency of production in various industries, it is necessary to introduce automated electric drives based on promising switched-reluctance motors. The geometric parameters of the active part of the switched-reluctance motor were calculated. As a criterion, the maximum value of the average value of the electromagnetic moment for the switching period was taken as the basis. Optimal design was carried out by means of the computer-aided design program developed by the author in co-authorship. It, in turn, includes optimization algorithms based on stochastic and deterministic methods. The developed program for optimizing the active part of the switched-reluctance motor was implemented using the Matlab application software package, which directly interacts with the FEMM program for calculating and visualizing electromagnetic processes. Finding the most energy-efficient engine geometry was performed in two stages, in order to determine the geometric parameters of the engine tooth zone that have a dominant influence on the value of the electromagnetic moment, as well as to ensure a guaranteed finding of the global extremum of the target function.

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“…In addition, look-up tables do not take into account the differences in the characteristics of the phases which may arise as a result of the inaccuracies during SRM manufacturing process [4]. Methods based on the use of markers are generally limited to the rotation frequency or excitation current control.…”

Section: Introductionmentioning

confidence: 99%