Sub-Sonic Linear Synchronous Motors Using Superconducting Magnets for the Hyperloop

Abstract

Sub-sonic linear synchronous motors (LSMs) with high-temperature superconducting (HTS) magnets, which aim to accelerate to a velocity of 1200 km/h in the near-vacuum tubes of 0.001 atm for the Hyperloop, are newly introduced in this paper. By the virtue of the combination of LSMs and electrodynamic suspensions (EDSs) with HTS magnets, a large air-gap of 24 cm, low magnetic resistance forces of below 2 kN, and the efficient as well as practical design of propulsion power supply systems of around 10 MVA could be guaranteed at a sub-sonic velocity. The characteristics of the proposed LSMs with HTS magnets, in addition, are widely analyzed with theories and simulation results. Optimal design methods for LSMs and inverters, which account for more than half of the total construction cost, are introduced with design guidelines and examples for the commercialization version of the Hyperloop. At the end of the paper, in order to verify the proposed design models of the sub-sonic LSMs, two different test-beds—i.e., 6 m long static and 20 m long dynamic propulsion test-beds—are fabricated, and it is found that the experimental results are well matched with proposed design models as well as simulation results; therefore, the design methods constitute guidelines for the design of sub-sonic LSMs for the Hyperloop.

Assessing Hyperloop Transport Capacity Under Moving-Block and Virtual Coupling Operations

“…The fact the Hyperloop is still a concept has led to many different concepts for its various components. The propulsion system is not an exception and various possible configurations can be found in the literature (9,10). This work is based on a single configuration which is a magnetically levitated capsule propelled by a linear synchronous motor as proposed by Choi et al (9).…”

Физические Принципы Создания Магнитолевитационных Систем На Основе Высокотемпературных Сверхпроводящих Композитов Второго Поколения (Обзор)

“…Транспортное приложение ВТСП включает в себя всевозможные магнитные подвесы, двигатели для системы Maglev, концептуальные модели высокоскоростного наземного транспорта. Разработаны вычислительные модели ВТСП-двигателей [173][174][175], модели для расчета динамического сопротивления подвеса движению [176,177], расчет параметров левитационной системы при наличии вибраций [167,178], расчет динамического отклика и коэффициента демпфирования стопок ВТСП-лент при наличии внешних импульсных возбуждений [178], показаны преимущества и недостатки использования объемных ВТСП и стопок ВТСП-лент в левитационных системах [52,165]. В работе [179] представлены результаты расчетов линейного сверхпроводящего двигателя на основе стопок ВТСП-лент.…”

Capsule Vehicle Dynamics Based on Levitation Coil Design Using Equivalent Model of a Sidewall Electrodynamic Suspension System

“…Unlike the EMS system, which requires gap control between the running body and the guideway, the EDS system does not require any gap control. In addition, because the EMS method is unsuitable for driving speeds of over 500 km/h, the EDS system is more popular for capsule train systems [12][13][14][15]. When the EDS system is applied to maglev, which is a high-speed magnetic levitation system employed in Japan, the characteristics of the magnetic stiffness corresponding to the primary suspension between the running vehicle and the guideway should be identified as accurately as possible [16][17][18][19][20][21][22][23][24].…”