Due to the reliance of a permanent magnet levitation vehicle on repulsive forces for suspension, any displacement or misalignment of the magnets generates lateral forces. When a train traverses a curved track segment, the centrifugal force causes the vehicle body to shift towards the outer side of the curve, resulting in lateral forces between the magnets. These lateral forces also direct towards the outside of the curve. If measures are not taken to counteract this trend, the lateral forces increase with the increasing lateral displacement of the magnets, compromising the stability of the vehicle and affecting its safety. To address the issue of guidance safety in permanent magnet suspension trains, a hybrid guidance system that combines mechanical guidance wheels and electromagnetic guidance is proposed, and Active Disturbance Rejection Control (ADRC) is used to control the hybrid guidance system. Comparative analysis of the vehicle dynamic performance under the traditional mechanical guidance wheel guidance and the hybrid guidance system under curved track conditions is also conducted.

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Research on Hybrid Guidance System of Permanent Magnetic Levitation Vehicle

  • Hangsheng Wang,
  • Jimin Zhang,
  • Hechao Zhou,
  • Zhenhai Zong

摘要

Due to the reliance of a permanent magnet levitation vehicle on repulsive forces for suspension, any displacement or misalignment of the magnets generates lateral forces. When a train traverses a curved track segment, the centrifugal force causes the vehicle body to shift towards the outer side of the curve, resulting in lateral forces between the magnets. These lateral forces also direct towards the outside of the curve. If measures are not taken to counteract this trend, the lateral forces increase with the increasing lateral displacement of the magnets, compromising the stability of the vehicle and affecting its safety. To address the issue of guidance safety in permanent magnet suspension trains, a hybrid guidance system that combines mechanical guidance wheels and electromagnetic guidance is proposed, and Active Disturbance Rejection Control (ADRC) is used to control the hybrid guidance system. Comparative analysis of the vehicle dynamic performance under the traditional mechanical guidance wheel guidance and the hybrid guidance system under curved track conditions is also conducted.