Fault Analysis and Tolerant Control for High Speed PEMS Maglev Train End Joint Structure with Disturbance Rejection

Wang, Zhiqiang; Li, Zhiqiang; Li, Xiaolong

doi:10.1007/s42835-019-00141-w

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…However, the electromagnetic levitation system is a typical open-loop unstable system (Zhao et al, 2022; Wang et al, 2019), which needs active control continuously to achieve system stability. In other words, the electromagnetic levitation system is very easy to be affected by uncertain factors such as interference or impact load in operation, and it is very easy to cause the control performance of the system to decrease or instability.…”

Section: Introductionmentioning

confidence: 99%

Performance optimization of electromagnetic levitation system based on gradient estimator

Zhou,

Wen,

et al. 2023

Transactions of the Institute of Measurement and Control

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Aiming at the problem of optimal design of the controller of electromagnetic levitation system, this paper proposes a gradient estimator-based controller design and optimization structure suitable for electromagnetic levitation system. The structure consists of a nominal controller, a residual generator, and a dynamic compensator. The controller structure can further improve the anti-disturbance and robustness of the electromagnetic levitation system on the premise of ensuring the stability and reliability. Considering the generality of electromagnetic levitation system, the proportional–integral–derivative (PID) controller is selected as the nominal controller, and the robustness of the system is improved by the dynamic compensator based on the residual generator. The parameter design and update strategy of dynamic compensator based on gradient estimator are proposed, and the expression of gradient estimator is designed and deduced. Taking the single-degree-freedom electromagnetic levitation experimental platform as an example, the simulation and experimental results show that the structure has strong robustness to shock disturbances. Compared with the PID controller, the range of the gap fluctuation is smaller after the instantaneous impact interference, and the anti-interference capability of the electromagnetic levitation system is improved.

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Section: Introductionmentioning

confidence: 99%

Performance optimization of electromagnetic levitation system based on gradient estimator

Zhou,

Wen,

et al. 2023

Transactions of the Institute of Measurement and Control

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“…Furthermore, considering the disturbance and the uncertainties, fast proportional integral fault estimator and adaptive controller have been developed to fault estimation and FTC of rectifier of HST (Zhang et al, 2018). To implement fault estimation and FTC for the end joint structure of magnet electro-magnetic suspension (PEMS) type HST, a dynamic compensation method based on disturbance estimation and a disturbance rejection method depended on feedback linearization have been proposed (Wang et al, 2019). Aiming at fault estimation and FTC for centrifugal fan of HST cooling system, fatigue analysis and fault diagnosis methods have been proposed and tested by experiment (Xie et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Finite frequency fault estimation and fault-tolerant control for dynamics of high-speed train based on descriptor systems

Liang

Liu

Xiang

et al. 2022

Transactions of the Institute of Measurement and Control

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In this paper, novel fault estimation and fault-tolerant control methods are proposed for dynamics of high-speed train based on descriptor systems with uncertainties in finite frequency domain. Dynamics of high-speed train is established based on multi-particle model considering that basic resistance is seen as the coefficient of state variables, and additive resistance and the operating noise are seen as multi-source disturbance. Concurrent actuator, sensor faults, and wind gust are considered simultaneously; wind gust is modeled as a disturbance generated by the exogenous system, and an uncertain descriptor system with actuator fault and the exogenous disturbance is established by seeing the sensor fault of high-speed train as the state variables. A robust disturbance-observer-based fault estimation method is proposed to decouple the non-linearity of the descriptor system, so that the combining estimation of the fault and wind gust is implemented. This observer has an unknown input structure, and its gain matrices are formulated as linear matrix inequalities. The observer not only guarantees the augmented state estimation error is asymptotic stable but also the actuator fault estimation and wind gust estimation errors are robust to the multi-source disturbance and the uncertainties. Based on the estimation results, the fault-tolerant controller associated with the state estimation, faults estimation, and wind gust estimation results is proposed to implement a stable close-loop fault-tolerant control for dynamics of high-speed train. Simulation examples are given to illustrate the effectiveness of this method.

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Thermal and Stress Analysis of Linear Hybrid Excited Flux Switching Machine with Modular Stator

Jan

Khan

Qasim

et al. 2021

2021 International Conference on Emerging Power Technologies (ICEPT)

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Fault Analysis and Tolerant Control for High Speed PEMS Maglev Train End Joint Structure with Disturbance Rejection

Cited by 6 publications

References 16 publications

Performance optimization of electromagnetic levitation system based on gradient estimator

Performance optimization of electromagnetic levitation system based on gradient estimator

Finite frequency fault estimation and fault-tolerant control for dynamics of high-speed train based on descriptor systems

Thermal and Stress Analysis of Linear Hybrid Excited Flux Switching Machine with Modular Stator

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