A New System of Combined Propulsion and Levitation for Maglev Transportation

Kuptsov, Vladimir; Fajri, Poria; Magdaleno-Adame, Salvador; Hadziristic, Konstantin

doi:10.1109/apec39645.2020.9124470

Cited by 2 publications

(9 citation statements)

References 10 publications

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“…The general view of the ADSLIM used for this analysis is shown in Figure 1 and Table 1 shows the general specifications of the ADSLIM. The choice of the ADSLIM is based on the previous study conducted by the authors in [19] which through careful optimization of ADSLIM parameters such as winding arrangement, number of poles, geometry of the primaries, and taking into account end effects, the authors achieved peak efficiency operation of 80%, indicating that ADSLIM can be a suitable option for high-speed maglev applications in terms of efficiency and power factor. As can be seen from Figure 1, the ratio between the depth of upper and lower slots is assumed to be four, resulting in four times fewer turns for the lower primary winding compared to the upper primary winding.…”

Section: Proposed Motor Structure and Control Methodsmentioning

confidence: 99%

“…The current balancing control is based on feeding different AC current magnitudes to the upper and lower primary windings such that the ADSLIM produces the desired thrust and lift forces. Using this control method, the ADSLIM can operate either in AC motoring mode or in AC generating mode (regenerative braking) [19]. This control method has been initially studied in [19] in which the general relationships for the resulting thrust and lift forces of the ADSLIM are derived as [19]:…”

Section: Current Balancing Control In Ac Mode Of Operation and Its Li...mentioning

confidence: 99%

“…Using this control method, the ADSLIM can operate either in AC motoring mode or in AC generating mode (regenerative braking) [19]. This control method has been initially studied in [19] in which the general relationships for the resulting thrust and lift forces of the ADSLIM are derived as [19]:…”

Section: Current Balancing Control In Ac Mode Of Operation and Its Li...mentioning

confidence: 99%

“…LIMs don't require the use of PMs to operate avoiding the increment of weight and cost of the maglev system. Some attempts have been made to utilize the same LIM [15][16][17][18][19][20] or LSM [21,22] for both thrust and lift force control. The main criteria when developing such a system is the ability to operate the linear motor near its maximum efficiency in a wide range of thrust and lift forces and for different lift to thrust ratios while keeping the control simple and easy to implement.…”

Section: Introductionmentioning

confidence: 99%

“…As can be seen, the main drawback of previously published methods is that simultaneous control of thrust and lift forces confines the LIM to operate with reduced efficiency, increasing overall power consumption. This study originates from the authors' previous work [19,20], where the electromagnetic performance of an asymmetric double-sided linear induction motor (ADSLIM) was initially studied and independent control of thrust and lift forces were achieved with high efficiency by applying different current amplitudes to upper and lower primaries. One of the main limitations of the previously proposed technique is that it prohibits ADSLIMs to produce a high lift force while operating with a low thrust force.…”

Section: Introductionmentioning

confidence: 99%

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Combined Propulsion and Levitation Control for Maglev/Hyperloop Systems Utilizing Asymmetric Double-Sided Linear Induction Motors

et al. 2022

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This article presents a new method for combined levitation and propulsion control in maglev/Hyperloop systems by selectively applying AC and DC modes of operation to a group of asymmetric double-sided linear induction motors (ADSLIMs). Although adjusting the AC current magnitude of lower and upper primary windings in ADSLIMs allows simultaneous control of thrust and lift forces, the limitation of this current balancing technique prohibits them from producing a high lift force while operating with low thrust force. To overcome this limitation and to simultaneously control the thrust and lift forces of the ADSLIMs with high efficiency under different operating conditions, a combination of AC and DC modes of operation is proposed. AC mode of operation consists of feeding different AC current amplitudes to the upper and lower ADSLIM primary windings to produce and control the required thrust and lift forces. The DC mode of operation consists of controlling one or several ADSLIMs to operate with DC excitation to realize the desired lift force at lower thrusts which otherwise cannot be achieved by operating in AC mode alone. The concept of the new combined control strategy is studied using two-dimensional finite element (FE) electromagnetic simulations and compared with an Inductrack permanent magnet (PM) based passive magnetic levitation system.

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Section: Proposed Motor Structure and Control Methodsmentioning

confidence: 99%

Section: Current Balancing Control In Ac Mode Of Operation and Its Li...mentioning

confidence: 99%

Section: Current Balancing Control In Ac Mode Of Operation and Its Li...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Combined Propulsion and Levitation Control for Maglev/Hyperloop Systems Utilizing Asymmetric Double-Sided Linear Induction Motors

et al. 2022

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Design, Optimization, and Control of a Linear Tubular Machine Integrated with Levitation and Guidance for Maglev Applications

et al. 2021

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Nowadays, with the increase of population, demand for efficient public transportation systems has increased. Magnetic levitation (maglev) trains are one of the best choices for the future. There are three separated systems in a classical magnetic train to achieve desirable performance. Hence, several control systems and sensors are essential for train operation. Accordingly, the classical maglev trains include complex structures, and they are so expensive. This paper presents the design, optimization, and control of a combined magnetic train structure with the integrated performance of suspension and guidance and a complementary propulsion system. These combined topologies provide a simple design, more convenient movement, and reduce construction and operation costs.

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A New System of Combined Propulsion and Levitation for Maglev Transportation

Cited by 2 publications

References 10 publications

Combined Propulsion and Levitation Control for Maglev/Hyperloop Systems Utilizing Asymmetric Double-Sided Linear Induction Motors

Combined Propulsion and Levitation Control for Maglev/Hyperloop Systems Utilizing Asymmetric Double-Sided Linear Induction Motors

Design, Optimization, and Control of a Linear Tubular Machine Integrated with Levitation and Guidance for Maglev Applications

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