Superconducting Electromagnetic Launch System for Civil Aircraft

Bertola, Luca; Cox, Tom; Wheeler, Patrick; Garvey, Seamus D.; Morvan, Hervé

doi:10.1109/tasc.2016.2598772

Cited by 18 publications

(5 citation statements)

References 14 publications

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“…Reduced environmental harm and little disturbance for those who live close to airports are the primary drivers driving the growth of fully electric aircraft. There are many benefits to using electric power, including removing hydraulic systems, which are responsible for around 70% of aviation downtime, considerably reducing maintenance needs, and distributing generators throughout the aircraft to increase reliability through redundancy in automobiles [8]. A hybrid electric motor.…”

Section: Electric Propulsionmentioning

confidence: 99%

Superconducting Electromagnetic Launch Machine System for Aerospace Applications

Vijayapakavan,

Robinson Smart,

Ramu

et al. 2023

jacp

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The aerospace industry is constantly experimenting with innovative technologies to improve efficiency, effectiveness and sustainability. The use of superconducting machines emerged as a promising solution to address the growing demands of Aerospace applications. Superconducting machines offer significant advantages such as higher power density, reduced weight and improved efficiency compared to conventional electrical machines. However, efficient cooling methods are critical to maintain superconducting materials at low-temperature operating conditions. This abstract provides a comprehensive overview of superconducting machines and their associated cooling systems designed for space applications. A superconducting machine uses high-temperature superconductors to achieve near-zero electrical resistance, enabling high currents to be transmitted with low energy losses. This feature allows development of lightweight and compact electric propulsion systems contribute to improved fuel efficiency and extended mission capabilities in space vehicles. A cooling system is an important component of a superconducting machine because it ensures that the superconducting materials remain below their critical temperature. Various cooling techniques are being explored, including cryogenic cooling, liquid nitrogen cooling, and cryocoolers. These cooling systems effectively extract the heat generated during engine operation, maintaining the superconducting components in their superconducting state.

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Section: Electric Propulsionmentioning

confidence: 99%

Superconducting Electromagnetic Launch Machine System for Aerospace Applications

Vijayapakavan,

Robinson Smart,

Ramu

et al. 2023

jacp

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“…Magnetic levitation, as an advanced technology for rail transportation, will promote further development and application in transportation [2,3]. At present, China, the US, Germany and Japan are the four most developed countries in maglev technology, and are clearly leading in the international arena with abundant research results [4][5][6]. Meanwhile, countries such as Switzerland, Canada, and South Korea are actively researching new maglev rail technology [7].…”

Section: Introductionmentioning

confidence: 99%

Multi-sensor information fusion localization of rare-earth suspended permanent magnet maglev trains based on adaptive Kalman algorithm

Xu,

Fan,

et al. 2023

PLoS ONE

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Since the positioning accuracy of sensors degrades due to noise and environmental interference when a single sensor is used to localize a suspended rare-earth permanent magnetically levitated train, a multi-sensor information fusion method using multiple sensors and self-correcting weighting is proposed for permanent magnetic levitated train localization. A decay memory factor is introduced to reduce the weight of the influence of historical measurement data on the fusion estimation, thus enhancing the robustness of the fusion algorithm. The Kalman filtering results suffer from inaccuracy when process noise is present in the system. In this paper, we use a covariance adaptive scheme that replaces the prediction step of the Kalman filter with covariance. It uses the covariance adaptive scheme to search the posterior sequence online and reconstruct the prior error covariance. Since the process noise covariance is not used in the new adaptive scheme, the negative impact of the mismatch noise statistics is greatly reduced. Simulation and experimental results show that the use of multi-sensor information fusion and covariance adaptive Kalman algorithm has significant advantages in terms of adaptability, accuracy and simplicity.

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“…The power density of current electrical machines is not high enough for advanced propulsion applications in all electric aircraft [1][2][3][4][5][6][7][8][9][10][11][12]. Compared to conventional machines with copper windings, superconducting machines can significantly reduce machine volume and weight, thereby significantly increasing power density.…”

Section: Introductionmentioning

confidence: 99%

Fully superconducting machine for electric aircraft propulsion: study of AC loss for HTS stator

Weng

Zhang

Lan

et al. 2020

Supercond. Sci. Technol.

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Fully superconducting machines provide the high power density required for future electric aircraft propulsion. However, superconducting windings generate AC losses in AC electrical machine environments. These AC losses are difficult to eliminate at low temperatures, and they add an extra burden to the aircraft cooling system. Due to the heavy cooling penalty, AC loss in the HTS stator is one of the key topics in HTS machine design. In order to evaluate the AC loss of superconducting stator windings in a rotational machine environment, we designed and built a novel axial-flux high temperature superconducting (HTS) machine platform. The AC loss measurement is based on the calorimetric boiling-off of liquid nitrogen. Both total AC loss and magnetisation loss in the HTS stator are measured under the condition of a rotational magnetic field. This platform represents a key element in studying ways to minimise AC losses in an HTS stator, in order to maximise the efficiency of fully HTS machines.

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Superconducting Electromagnetic Launch System for Civil Aircraft

Cited by 18 publications

References 14 publications

Superconducting Electromagnetic Launch Machine System for Aerospace Applications

Superconducting Electromagnetic Launch Machine System for Aerospace Applications

Multi-sensor information fusion localization of rare-earth suspended permanent magnet maglev trains based on adaptive Kalman algorithm

Fully superconducting machine for electric aircraft propulsion: study of AC loss for HTS stator

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