Acceleration closed-loop control on switched reluctance linear launcher

Chen, H.; Wang, Q.; Iu, Herbert Ho-Ching

doi:10.1109/eml.2012.6325023

Cited by 4 publications

(4 citation statements)

References 10 publications

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“…An electromagnetic launcher is composed of an accelerating electric motor, an electrical energy storage unit, a power supply and a electronic control device. Acceleration electric motors can be of various types: asynchronous, synchronous permanent magnet or synchronous switched reluctance motors [1]. Electrical energy storage units may be mechanical flywheels, called also impulse generators, or ultracapacitors batteries.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, permanent magnet linear motors have been more and more used in applications showing a significant advantage in terms of efficiency, thrust control, position accuracy, and reliability. Rare-earth magnets, such as SmCo or NdFeB magnets, improve the performance of the permanent magnet linear motor drives, making slotless motors interesting solutions [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Coaxial Linear Motor for Electromagnetic Launchers

Grigorescu

Crăciunescu

Paţurcă

et al. 2016

The Scientific Bulletin of Electrical Engineering Faculty

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Coaxial Linear Motor for Electromagnetic Launchers

Grigorescu

Crăciunescu

Paţurcă

et al. 2016

The Scientific Bulletin of Electrical Engineering Faculty

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“…Since the SRG is singly excited structure, the phase windings of the SRG are excited for a few degrees during each electrical cycle to implement initial excitation in the generating mode of operation. The control parameters of SRG are turn-on and turnoff angles and phase current [7][8][9][10]. Since the nonlinear of SRG, it is challenge work to control the machine well [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Research on the control strategy of switched reluctance generator system

Cheng

et al. 2014

2014 International Power Electronics and Application Conference and Exposition

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The principle of switched reluctance generator (SRG) is introduced. And the compositions of switched reluctance generator system are given. Two main circuit structures of SRG system are compared to select the better one, i.e., self-excitation pattern and separate pattern. The control strategy of SRG system is put forward. Fixed angle PWM duty cycle control is used at low and medium speed. Fixed PWM angle control is adopted at high speed. Fuzzy controller is chosen as the main controller since it has the advantages of robustness. The flow charts of the two control modes are given. The generating experiments with different conditions are carried out to study on the generating characteristics of SRG, such as different PWM duty cycle, angles, load and speed. At last, the experimental results were analyzed in detail, which verified the rationality and feasibility of the proposed control strategy and designed SRG system.

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“…The permanent magnet materials are also used in brushless DC generator, so its cost is also high. The switched reluctance (SR) motor drive had been applied with high reliability for many years [1][2][3][4][5][6][7][8][9]. It can also be used as generator system [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Modeling, Simulation, and Experiment of Switched Reluctance Ocean Current Generator System

Chen

Zhang

2013

Advances in Mechanical Engineering

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This paper presents nonlinear simulation model of switched reluctance (SR) ocean current generator system on MAT-LAB/SIMULINK with describing the structure of generator system. The developed model is made up of main model, rotor position calculation module, controller module, gate module, power converter module, phase windings module, flux-linkage module, torque module, and power calculation module. The magnetization curves obtained by two-dimensional finite-element electromagnetic field calculation and the conjugated magnetic energy graphics obtained from the three-dimensional graphics of flux linkage are stored in the "Lookup Table" modules on MATLAB/SIMULINK. The hardware of the developed three-phase 12/8 structure SR ocean current generator system prototype with the experimental platform is presented. The simulation of the prototype is performed by the developed models, and the experiments have been carried out under the same condition with different output power, turn-off angle, and rotor speed. The simulated phase current waveforms agree well with the tested phase current waveforms experimentally. The simulated output voltage curves agree well with the tested output voltage curves experimentally. It is shown that the developed nonlinear simulation model of the three-phase 12/8 structure SR ocean current generator system is valid.

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Acceleration closed-loop control on switched reluctance linear launcher

Cited by 4 publications

References 10 publications

Coaxial Linear Motor for Electromagnetic Launchers

Coaxial Linear Motor for Electromagnetic Launchers

Research on the control strategy of switched reluctance generator system

Modeling, Simulation, and Experiment of Switched Reluctance Ocean Current Generator System

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