Tunnel-vision on economic linear propulsion?

André Veltman, Paul van der Hulst, Marco Jonker, Henk Polinder

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Serious initiatives for high speed transport of vehicles/pods/capsules through evacuated tubes were presented in recent years. Most suggest magnetic levitation and linear motors of long-stator design, assuming passive pods. This paper takes a the different approach, yielding minimal energy use per distance per passenger and lowest initial cost. An active pod (short-stator) on wheels with an on-board battery, able to build up speed and regenerate effectively using an inexpensive passive track is proposed. In the stations, power is received from active track-coils to charge the on-board battery. Permanent magnet (PM) track sections enable thrust to speed-up and slow-down. A relatively small rotating induction motor on the wheels enables efficient coasting. Speeding up and slowing down with a linear motor at constant power is effective in terms of component utilization. A mere 100 W/kg (common in present commercial full electric cars) is sufficient to travel long distance at high speed on record low energy consumption (<10 Wh/km per passenger).
Original languageEnglish
Title of host publication12th International Symposium on Linear Drives for Industry Applications (LDIA 2019)
Place of PublicationPiscataway, NJ, USA
ISBN (Electronic)978-1-5386-5804-8
ISBN (Print)978-1-5386-5805-5
Publication statusPublished - 2019
EventLDIA 2019: 12th International Symposium on Linear Drives for Industry Applications - Neuchatel, Switzerland
Duration: 1 Jul 20193 Jul 2019


ConferenceLDIA 2019: 12th International Symposium on Linear Drives for Industry Applications

Bibliographical note

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Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.


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