Simultaneous control of propulsion and levitation of linear induction motor in a novel Maglev system

Morizane, Toshimitsu; Kimura, Noriyuki; Taniguchi, K.

doi:10.1109/ipemc.2000.885343

Cited by 15 publications

(9 citation statements)

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“…The quasi-one-dimensional theory includes the transverse edge effect, skin effect and secondary saturation by means of appropriate coefficients, implemented by equivalent secondary conductivity σ e and equivalent gap g e . This model only takes into account the fundamental space harmonic, so the primary current sheet of becomes: (8) The derivation of the longitudinal end effect, the transverse edge effect, the saturation and the impedance [18] leads to the calculation of the thrust force F t and normal force F n , according to:…”

Section: B Boldea and Nasar Modelmentioning

confidence: 99%

“…The next set of papers [8]- [11] discusses various ways of decoupling the thrust and normal forces simultaneously. A control method of thrust and normal forces using the combined power source, which has a low frequency and a high frequency component, is proposed in [8].…”

Section: Introductionmentioning

confidence: 99%

“…A control method of thrust and normal forces using the combined power source, which has a low frequency and a high frequency component, is proposed in [8]. The low frequency component is used to control thrust force and supports the weight of the system, and the high frequency component is used to control the normal force.…”

Section: Introductionmentioning

confidence: 99%

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Force analysis of linear induction motor for magnetic levitation system

Kuijpers

Nemlioglu

Sahin

et al. 2010

Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010

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Abstract-This paper presents the analyses of thrust and normal forces of linear induction motor (LIM) segments which are implemented in a rotating ring system. To obtain magnetic levitation in a cost effective and sustainable way, decoupled control of thrust and normal forces is required. This study includes the design of a static test setup from which the measurement results are compared and verified with the derived analytical methods and finite element simulations. The comparison shows significant correlation of the thrust and normal forces as function of the slip frequency .

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Section: B Boldea and Nasar Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Force analysis of linear induction motor for magnetic levitation system

Kuijpers

Nemlioglu

Sahin

et al. 2010

Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010

View full text Add to dashboard Cite

show abstract

“…But in case of LIM supported without contact, there exists a strong cross couple between the thrust and normal force, and the control inputs. Therefore, various methodologies have been suggested to control the two-axis vector forces independently with only the multi-phase input applied to primary coils [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…And an approach using the slip frequency-variant property of thrust/normal force can be summarized into the levitation control by high frequency power and the weight compensation of secondary as well as the thrust control by low frequency power. Over there, the normal force is related to both low and high frequency, and then it did not realize a perfect compensation of couple between both forces and each frequency power [4]. Generally, a simultaneous control of vector forces consists of the normal force control by the magnetic flux modulation across the air-gap and the thrust force control by the slip frequency modulation.…”

Section: Introductionmentioning

confidence: 99%