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- W4386445174 abstract "High-speed Electromagnetic Suspension (EMS) train is continuously impacted by the irregularity of the track, which worsens the levitation performance of the train. In this paper, a composite control scheme for the EMS is proposed to suppress track irregularities by integrating a Refined Disturbance Observer (RDO) and a Prescribed Performance Fixed-Time Controller (PPFTC). The RDO is designed to estimate precisely the track irregularities and lumped disturbances with uncertainties and exogenous disturbances in the suspension system, and reduce input chattering by applying to the disturbance compensation channel. PPFTC is designed to converge the suspension air gap error to equilibrium point with prescribed performance by completing error conversion, and solve the fast dynamic issue of EMS. And the boundary of overshoot and steady-state is limited in the ranged prescribed. A theoretical analysis is conducted on the stability of the proposed control method. Finally, the effectiveness and reasonability of the proposed composite anti-disturbance control scheme is verified by simulation results." @default.
- W4386445174 created "2023-09-06" @default.
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- W4386445174 date "2023-09-01" @default.
- W4386445174 modified "2023-10-10" @default.
- W4386445174 title "Refined disturbance observer based prescribed performance fixed-time control of high-speed EMS Trains with track irregularities" @default.
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- W4386445174 doi "https://doi.org/10.1016/j.hspr.2023.09.001" @default.
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