Speakers
Description
The various wireless power charging (WPC) units for high speed hyperloop train should be practically required to supply electric power without overhead wire power lines of pantographs, since such a unit can reduce the construction cost for pantographs in the transportations. Generally, in order to charge superconducting levitation magnet for hyperloop train combined by WPC unit, the high power RF generators combined with high power converter should be required since the high field magnet keeps the high value of electric time constant. From these reasons, Wireless high Current Charging unit combined with Supercapacitors (WCCS) can be expected as one of reliable next generation WPC systems because the supercapacitors (SCs), which benefit from unique features including high power density (20A~200A), long cycle life, wide temperature operation range (-40oC~60oC), durability in harsh environments, efficient cycling, and low maintenance cost. As the SCs can discharge with high power density quickly, in order to charge the superconducting magnet with high stability, the smart current divider (SCD)unit, which can control the duration of discharging for the SC to avoid quench in the superconducting magnet, should be required to charge the superconducting magnet with high stability. Especially, as the WCCS module combined with SCD and SC can sable charge the superconducting magnet under the operating current mode, the proposed wireless current charging unit has been promisingly utilized as one of current compensators in the superconducting magnet system. From these reasons, the WCCS technology combined with SCD and SC system has been promisingly studied as one of reasonable energy charging units in the superconducting magnet. As the temperature operation range of the supercapacitor is affected by LN2, which cools the superconducting levitation magnet, the design of shield cooling system for supercapacitors should be considered in the Hyperloop. In this paper, authors present the operating characteristics of WCCS combined with SCD and SC system for high speed superconducting Hyperloop train. The 600W, 100kHz RF generator is adopted as a wireless power.
