Efficiency Improvement by Deriving the Optimal Operating Slip Frequency of a Linear-Induction-Style Maglev Train

Sang-Uk Park, Hyung-Soo Mok, Jae-Won Lim, Hyun-Uk Seo and Sang-Hun Oh
Additional contact information
Sang-Uk Park: Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea
Hyung-Soo Mok: Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea
Jae-Won Lim: Department of AI Machinery, System Engineering Research Division, Korea Institute of Machinery and Materials, Daejeon 34103, Korea
Hyun-Uk Seo: Department of Robotics & Mechatronics, Korea Institute of Machinery and Materials, Daejeon 34103, Korea
Sang-Hun Oh: Department of Electrical Engineering, Konkuk University, Seoul 05029, Korea

Energies, 2020, vol. 13, issue 24, 1-13

Abstract: While urban maglev trains have the advantage of being optimized for urban environments where noise is low and dust is less generated, their driving efficiency is low when compared to rotary induction motors owing to the structural limitations of linear devices. To compensate for these disadvantages, various studies on train control schemes have been conducted. Representative control methods include improving the efficiency of using slip frequency by directly controlling the propulsion force using vector control. However, this method has limitations in its use as it relates to the normal force that affects the train’s levitation system. Therefore, in this study, mathematical analysis was conducted for each factor that mutually affects the control of the train. On this basis, the magnitude of the normal force related to the safety of the train is limited. Operating efficiency was improved by varying the slip frequency according to the operating conditions of the train. In addition, for verification, the effect was proved through a comparative experiment using an 18 ton class maglev train running at Incheon International Airport.

Keywords: LIM; slip frequency; linear induction motor; automatic train operation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/13/24/6544/pdf (application/pdf)
https://www.mdpi.com/1996-1073/13/24/6544/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:13:y:2020:i:24:p:6544-:d:460638

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().