Coupling vibration analysis of full-vehicle vehicle-guideway for maglev train

ABSTRACT

In order to investigate the effect of inner loop current gain coefficient, time lag and levitation current perturbation on the static suspension stability for the maglev vehicle, a vertical vibration model of HSST-type maglev train with five suspension frames was established. The following conclusions are drawn based on the obtained results: for suppressing vehicle-guideway coupling vibration, the gain coefficient of the inner loop should take a large value in the double loop control, such as a value of 300. If one suspension controller has a large time constant delay, such as a value of 4 ms, and the suspension instability will occur for the vehicle. When the levitation current has a large range perturbation, such as a value of 50%, increasing the control frequency of the levitation controller can suppress the vehicle-guideway coupling vibration of the maglev system to a certain extent.

KEYWORDS:

• Maglev system
• vehicle-guideway coupling vibration
• current gain coefficient
• actuator delay
• levitation current perturbation

Acknowledgments

The authors acknowledge the support of State Key Laboratory of Traction Power, Southwest Jiaotong University.

Disclosure statement

No potential conflict of was reported by the authors.

Additional information

Funding

This work was supported by the National key R & D program funded projects [Project number 2016YFB1200601-A03 and 2016YFB1200602–13] and State Key Laboratory of independent research topics [Project number 2016TPL_T03].

Notes on contributors

Keren Wang

Keren Wang is a PhD student at State Key Laboratory of Traction Power, Southwest Jiaotong University. His main research fields include dynamic analysis and control of maglev train.

Weihua Ma

Weihua Ma is a researcher at State Key Laboratory of Traction Power, Southwest Jiaotong University. His main research fields include dynamic analysis and control of maglev train and longitudinal train dynamics.

Shihui Luo

Shihui Luo is a professor at State Key Laboratory of Traction Power, Southwest Jiaotong University. His main research fields include the design and control of maglev train and longitudinal train dynamics.

Ruiming Zou

Ruiming Zou is a PhD student at State Key Laboratory of Traction Power, Southwest Jiaotong University. His main research fields include dynamic analysis of maglev train and longitudinal train dynamics.

Xin Liang

Xin Liang is an engineer at CRRC QINGDAO SIFANG Co., Ltd. His main research fields include dynamic analysis and design of maglev train.