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Analysis on Dynamics Characteristics of Maglev with Loop Type Linear Synchronous Motor Section Change Algorithm using Electro-Mechanical Co-Simulation

  • Hyung Soo Mok
  • Doo-Young Yang
  • Na-Ree Lee
  • Sun-Shin Kang
  • Young-Jae Han
  • Dong-Chan Lee
  • Chang-Wan Kim
Regular Paper
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Abstract

A linear synchronous motor (LSM) is generally used for high-speed maglev train propulsion. For the LSM, the permanent magnet is installed on the train and the stator on the railway. But The stator winding is not practical to install the LSM as the same length as the train travel distance because the electric power is supplied to the entire railway at once, power loss will be significant. Therefore, several stators are separated from each other by section and the power is supplied to each section when maglev is on the section. For this purpose, it is necessary to develop an accurate control system to control each section and synchronize adjacent sections during a section change. In this paper we developed a control system for the section change, which is essential for the operation of the Maglev train using the LSM as its propulsion system, and this control system was combined with the multibody dynamics analysis of the Maglev to develop a state-of-the-art control algorithm; the performance of this control algorithm was proven to be excellent. Furthermore, we applied the analysis technique of electro-mechanical coupling system, which can analyze both the control algorithm of the section change and the multibody dynamics analysis of the Maglev at the same time, to examine the running performance of the Maglev train with different design variables in different running conditions.

Keywords

Linear synchronous motor Section change Maglev Multibody dynamics Co-simulation 

Abbreviation (biaoti)

Vd and Vq

Stator ‘d’ and ‘q’ voltages [V]

id and iq

Stator ‘d’ and ‘q’ current [A]

rs

Stator resistance [Ω]

Ld and Lq

‘d’ and ‘q’ inductances [H]

ϕf

Magnet flux [wb]

ωr

Rotor angular speed [rad/s]

F

Propulsion force [N]

τ

Pole pitch [m]

P

The number of poles

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Copyright information

© Korean Society for Precision Engineering 2018

Authors and Affiliations

  1. 1.Department of Electrical EngineeringKonkuk UniversitySeoulRepublic of Korea
  2. 2.Department of Mechanical EngineeringKonkuk UniversitySeoulRepublic of Korea
  3. 3.Maglev Railroad Research TeamKorean Rail Research InstituteGyeonggi-doRepublic of Korea
  4. 4.Graduate School of Mechanical Design EngineeringHanyang UniversitySeoulRepublic of Korea

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