scholarly journals Energy Recovery from a Non-Linear Electromagnetic System

2018 ◽  
Vol 12 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Krzysztof Kęcik
Keyword(s):  
Energy Harvesting ◽  
Energy Recovery ◽  
Magnetic Levitation ◽  
Period Doubling ◽  
Stability Loss ◽  
Dynamic Vibration Absorber ◽  
Electromagnetic System ◽  
Coil Resistance ◽  
Magnetic Levitation System ◽  
The Stability

AbstractThe paper presents study of a pseudo-magnetic levitation system (pseudo-maglev) dedicated for energy harvesting. The idea rely on motion of a pseudo-levitating magnet in a coil’s terminal. The study based on real prototype harvester system, which in the pendulum dynamic vibration absorber is applied. For some parameters, the stability loss caused by the period doubling bifurcation is detected. The coexistence of two stable solutions, one of which is much better for energy harvesting is observed. The influence of the pseudo-maglev parameters on the recovered current and stability of the periodic solutions is presented in detail. The obtained results show, that the best energy recovery occurs for the high pseudo-maglev stiffness and close to the coil resistance. The amplitude’s excitation, the load resistances and the coupling coefficient strongly influence on the system’s response.

On Energy harvesting from nonlinear Vibrations of a magnetic levitation system excited by an Electromechanical shaker

2015 ◽  
Author(s):  
Hassan Costa Arbex ◽  
José Manoel Balthazar ◽  
Angelo Marcelo Tusset ◽  
Vinícius Piccirillo ◽  
Reyolando Manoel Lopes Rebello da Fonseca Brasil ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Nonlinear Vibrations ◽  
Magnetic Levitation ◽  
Levitation System ◽  
Magnetic Levitation System

Energy harvesting from a magnetic levitation system

2017 ◽  
Vol 94 ◽  
pp. 200-206 ◽  
Author(s):  
Krzysztof Kecik ◽  
Andrzej Mitura ◽  
Stefano Lenci ◽  
Jerzy Warminski
Keyword(s):  
Energy Harvesting ◽  
Magnetic Levitation ◽  
Levitation System ◽  
Magnetic Levitation System

scholarly journals Model predictive control of magnetic levitation system

2020 ◽  
Vol 10 (6) ◽  
pp. 5802
Author(s):  
Lafta E. Jumaa Alkurawy ◽  
Khalid G. Mohammed
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Controller Design ◽  
Magnetic Levitation ◽  
Lagrange Function ◽  
Sufficient Conditions ◽  
Nonlinear Controller ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
The Stability

In this work, we suggest a technique of controller design that applied to systems based on nonlinear. We inform the sufficient conditions for the stability of closed loop system. The asymptotic stability of equilibrium and the nonlinear controller can be applied to improvement the stability of Magnetic Levitation system(MagLev). The MagLev nonlinear nodel can be obtained by state equation based on Lagrange function and Model Predictive Control has been used for MagLev system.

scholarly journals Theoretical and Experimental Investigations of a Pseudo-Magnetic Levitation System for Energy Harvesting

Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1623
Author(s):  
Krzysztof Kecik ◽  
Andrzej Mitura
Keyword(s):  
Energy Harvesting ◽  
Electromechanical Coupling ◽  
Magnetic Levitation ◽  
Continuation Method ◽  
Harmonic Balance Method ◽  
Path Following ◽  
Experimental Investigations ◽  
System Response ◽  
Electrical Systems ◽  
Magnetic Levitation System

The paper presents an analytical, numerical and experimental analysis of the special designed system for energy harvesting. The harvester system consists of two identical magnets rigidly mounted to the tube’s end. Between them, a third magnet is free to magnetically levitate (pseudo-levitate) due to the proper magnet polarity. The behaviour of the harvester is significantly complicated by a electromechanical coupling. It causes resonance curves to have a distorted shape and a new solution from which the recovered energy is higher is observed. The Harmonic Balance Method (HBM) is used to approximately describe the response and stability of the mechanical and electrical systems. The analytical results are verified by a numerical path following (continuation) method and experiment test with use of a shaker. The influence of harvester parameters on the system response and energy recovery near a main resonance is studied in detail.

Backstepping Adaptive Control of NC Tool Crossbeam Magnetic Levitation System

2011 ◽  
Vol 383-390 ◽  
pp. 1781-1786
Author(s):  
Chun Fang Liu ◽  
Qing Guang Chi ◽  
Li Mei Wang ◽  
Qing Ding Guo
Keyword(s):  
Magnetic Levitation ◽  
Nc Machine Tool ◽  
State Variable ◽  
Levitation System ◽  
Nc Machine ◽  
On Line ◽  
Magnetic Levitation System ◽  
Backstepping Controller ◽  
The Stability ◽  
Global Trajectory

At the moving crossbeam levitation system of the gantry NC machine tool, backstepping adaptive mode control was proposed to achieve the high precision and steady levitation of the gap due to the effect of the cutting force on magnetic levitation system. Considering that the speed state variable is nonmeasurable, a state filter K was designed to estimate the parameter on line. And then the adaptive backstepping controller is designed for the nonlinear magnetic levitation system. The system can achieve the global trajectory tracking of the output because of its unique structure and the capacity to the system disturbance, while all the signals of this closed-loop system can remain bounded via the Lyapunouv theory. The simulation results show this method can keep the stability of levitation system. Meantime, this controller has powerful ability of suppressing disturbance and high rigidity.

Model Development and Control Implementation for a Magnetic Levitation Apparatus

1995 ◽  
Author(s):  
Trent M. Guess ◽  
David G. Alciatore
Keyword(s):  
Magnetic Levitation ◽  
Model Development ◽  
Actual System ◽  
Physical Plant ◽  
Experimental Apparatus ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
The Stability ◽  
And Control ◽  
Control Implementation

Abstract This project takes a comprehensive look at model development for the classic magnetic levitation system and examines differences between the conventional mag-lev model and an actual system. Also examined are the effects that un-modeled dynamics can have on the stability of a simulated system. This project combines and expands upon modeling techniques presented in similar projects (Lawson and Gillies, 1989, Lin and Jou, 1993, Oguchi and Tomigashi, 1990, Wong, 1986), and presents a method for modeling the mag-lev system which combines conventional electromagnetic theory and data from the physical plant. The model is then tested by designing and simulating controllers with the model and then applying the controllers to the experimental apparatus.

On a non-ideal magnetic levitation system: nonlinear dynamical behavior and energy harvesting analyses

2019 ◽  
Vol 95 (4) ◽  
pp. 3423-3438 ◽  
Author(s):  
Rodrigo Tumolin Rocha ◽  
Jose Manoel Balthazar ◽  
Angelo Marcelo Tusset ◽  
Silvio Luiz Thomaz de Souza ◽  
Frederic Conrad Janzen ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Magnetic Levitation ◽  
Dynamical Behavior ◽  
Nonlinear Dynamical ◽  
Levitation System ◽  
Magnetic Levitation System

scholarly journals Movement Control Method of Magnetic Levitation System Using Eccentricity of Non-Contact Position Sensor

2021 ◽  
Vol 11 (5) ◽  
pp. 2396
Author(s):  
Jong Suk Lim ◽  
Hyung-Woo Lee
Keyword(s):  
Motor System ◽  
Control Method ◽  
Magnetic Levitation ◽  
Movement Control ◽  
Position Sensor ◽  
Semiconductor Wafer ◽  
Control Command ◽  
Levitation System ◽  
Magnetic Levitation System ◽  
Contact Position

This paper presents a method of utilizing a non-contact position sensor for the tilting and movement control of a rotor in a rotary magnetic levitation motor system. This system has been studied with the aim of having a relatively simple and highly clean alternative application compared to the spin coater used in the photoresist coating process in the semiconductor wafer process. To eliminate system wear and dust problems, a shaft-and-bearing-free magnetic levitation motor system was designed and a minimal non-contact position sensor was placed. An algorithm capable of preventing derailment and precise movement control by applying only control without additional mechanical devices to this magnetic levitation system was proposed. The proposed algorithm was verified through simulations and experiments, and the validity of the algorithm was verified by deriving a precision control result suitable for the movement control command in units of 0.1 mm at 50 rpm rotation drive.

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