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Research on a linear permanent magnet brushless DC motor for electromagnetic catapult

机译：用于电磁弹射器的线性永磁无刷直流电动机的研究

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Linear permanent magnet brushless DC motor (LPMBDCM) is used for electromagnetic catapult, which may offer significant advantages, in terms of efficiency, high speed and accelerations of heavy payloads, capability of high forces and so on. In this paper, a LPMBDCM, which is constructed on transverse flux stator and permanent magnet mover, is investigated. Firstly, the magnetic circuit design is presented, and the rated work performances are analyzed. The rated input voltage, current, thrust and power efficiency is 4000V, 18041A and 1.3896MN, 0.97, respectively. Then, to validate the characteristic of the basic design, the system simulation model including the power supply model and power condition model is built using Simulink, and the launch trajectory is gotten by the model. Finally, a small scale prototype machine and relevant control system based on DSP chip is fabricated on the basis of the results. The experiment results indicate the subscale catapult start successfully and run smoothly. The current curve shows a good agreement with the simulation result of whether Ansoft or Simulink.
机译：线性永磁无刷直流电机（LPMBDCM）用于电磁弹射器，可在效率，高速和繁重的加速度，高力等方面提供显着优势，高力等。本文研究了一种在横向磁通定子和永磁动器上构造的LPMBDCM。首先，提出了磁路设计，分析了额定工作性能。额定输入电压，电流，推力和功率效率分别为4000V，18041A和1.3896Mn，0.97。然后，为了验证基本设计的特性，使用Simulink建立了包括电源模型和电源模型的系统仿真模型，并通过该模型得到的发射轨迹。最后，基于结果制造了一种基于DSP芯片的小型原型机和相关控制系统。实验结果表明亚峰弹射器成功开始并顺利运行。目前的曲线显示了与ANSOFT或SIMULINK的仿真结果吻合良好。

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