In order to strengthen the high-speed maglev trains anti-disturbance ability, the traditional linear cascade control algorithm has been improved. Firstly, the mathematical model of the joint-structure in the high-speed maglev train was established according to the dynamics and electromagnetism theory. Secondly, the advantages and disadvantages of the linear cascade control algorithm were analysed. Thirdly, the relationship between the current loop and position loop control parameters and the system performance was discussed. Finally, the nonlinear cascade control algorithm of the joint-structure in high-speed maglev train was introduced. In the algorithm, the current loop controller gain would be reduced when the positional deviation increases. At the same time, the gain of the position loop controller would be increased. The simulation results show that the suspension joint-structure gap changes caused by the failure of a single suspension point or disturbing force, of systems with nonlinear cascade control algorithm were less than that of systems with linear cascade control algorithm. The new algorithm can improve the anti-disturbance ability of the maglev train, It can also ensure the safety and comfort of passengers.
Nonlinear Cascade Control of the Joint-Structure in EMS High Speed Maglev Train
2013
6 Seiten
Aufsatz (Konferenz)
Englisch
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