Rail Magnet Arrangements for Improved Stability of a Superconducting Transport System

Futamura, Muneo; OHATA, Sho

doi:10.1109/tasc.2022.3167929

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…One state-of-the-art example of precision motion systems includes a photolithography machine [2] for the manufacturing of integrated circuits (ICs), where sub-nanometer positioning accuracy and very high speed is required. Similarly, IC inspection and packaging systems, scanning probe microscopes [3], additive manufacturing systems [4], [5], inclean-room transportation system [6], stages for ultraprecision optical payloads [7] and precision machine tools are some other applications of precision positioning systems. Hence, the productivity and quality of the process is influenced by the motion accuracy of the maglev positioning system, and the attenuation of micro-vibrations transmitted from several disturbance sources.…”

Section: Introductionmentioning

confidence: 99%

GA Optimized PI-PDN Robust Control of a 1-DOF Maglev Precision Position System

Malik,

Ahmad,

Wadood

2023

IEEE Access

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This paper investigates 2 difficult problems encountered in magnetic levitation systems: robust control design and disturbance rejection. A PI-PDN robust control strategy is developed to control the position of a 1-degree-of-freedom (DOF) magnetic levitated rigid beam system or MLS for precision positioning applications under parametric variations, uncertainties, and external disturbances. The proposed PI-PDN gains are optimized by employing a Genetic Algorithm (GA), Marine Predator Algorithm (MPA), and Particle Swarm Optimization (PSO). GA-tuned gains lead to manifold improvement in key time and frequency domain performance specifications of rise time, settling time, overshoot, tracking error, bandwidth, classical gain and phase margins. Additionally, the metrics of disk margins (DM) are employed for assessing the robustness of a closed-loop system subjected to simultaneous variation in gain and phase. To demonstrate the performance and effectiveness of the proposed GA-PI-PDN topology, numerical simulation results are compared with corresponding results of the benchmark PIDN with that of PI-PDN and GA-PI-PDN. The developed control algorithms were deployed on a dedicated embedded system utilizing Simulink automatic C++ code generation capabilities. The development of different control strategies was aided by building high fidelity mathematical model of electromagnets and experimental determination of important model parameters.

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Section: Introductionmentioning

confidence: 99%

GA Optimized PI-PDN Robust Control of a 1-DOF Maglev Precision Position System

Malik,

Ahmad,

Wadood

2023

IEEE Access

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バルク超電導体を用いた磁石軌道上の移動・搬送装置

FUTAMURA

2023

Journal of the Japan Society of Applied Electromagnetics and Me

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バルク超電導体を用いた磁石軌道上の移動・搬送装置Moving and transport equipment by magnetic levitation of bulk superconductors and magnet rails.Muneo FUTAMURA Magnetic levitation using bulk superconductors provides smooth motion without frictional resistance and is therefore being considered for a variety of mechanical systems, such as bearings, energy storage flywheels and linear-drive transport systems. Various transport systems based on bulk superconducting magnetic levitation have been studied, ranging from small demonstrations to large railways. This paper introduces some examples of research into the application of bulk superconducting magnetic levitation and describes one of them, a magnet arrangement for rails that controls the roll angle of a levitating body. Transport systems using superconducting magnetic levitation are often at risk of derailment due to the shuttle tilting backwards from the bank angle. To mitigate this problem, this study investigates an alternative rail magnet arrangement that can improve the stability of levitated transport systems by inducing a forward inclination of the bank angle. The results can be used to enhance the safety of various transport applications that rely on magnetic levitation technology.

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Rail Magnet Arrangements for Improved Stability of a Superconducting Transport System

Cited by 2 publications

References 30 publications

GA Optimized PI-PDN Robust Control of a 1-DOF Maglev Precision Position System

GA Optimized PI-PDN Robust Control of a 1-DOF Maglev Precision Position System

バルク超電導体を用いた磁石軌道上の移動・搬送装置

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