Optimization of reluctance accelerator efficiency by an improved discharging circuit |
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Institution: | School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031, China |
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Abstract: | In this paper, an improved discharging circuit was proposed to quicken the decay of the current in the drive coil in a reluctance accelerator when the armature reaches the center of the coil. The aim of this is to prevent the suck-back effect caused by the residual current in drive coil. The method is adding a reverse charging branch with a small capacitor in the traditional pulsed discharging circuit. The results under the traditional circuit and the improved circuit were compared in a simulation. The experiment then verified the simulations and they had good agreement. Simulation and experiment both demonstrated the improved circuit can effectively prevent the suck-back effect and increase the efficiency. At the voltage of 800 V, an efficiency increase of 36.34% was obtained. |
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Keywords: | Reluctance accelerator Suck-back effect Discharging circuit Current decay Efficiency optimization |
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