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Proposal of the sensorless control method of long primary segmented PMLSM applied in electromagnetic catapult

机译:电磁弹射器中长初级分段PMLSM的无传感器控制方法的提议

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The paper proposes a sensorless control strategy for long primary segmented permanent magnet linear synchronous motor(LPSPMLSM) used in electromagnetic catapult .Aiming at characteristics of parameter changes of LPSPMLSM, researchers mean to establish mathematical models of the motor. In accordance with the analysis of mathematical models of the motor, this paper presents an ameliorated sliding mode observer to acquire smooth observed back electromotive force (EMF). Besides, the method of two segments' observation of back EMF and Synchronization solves the both speed and position observation problem when movers move in single stator or transgress two stators. In that way, speed closed-loop control which has high dynamic response ability can be achievable by the sensorless algorithm. Ultimately, through the verification of Simulation testing, segmented motor can satisfy the demand of EML field by using control algorithm mentioned above.
机译:本文提出了一种用于长初级分段永磁体线性同步电动机(LPSPMLSM)的无传感器控制策略,用于电磁弹射器。在LPSPMLSM的参数变化特征中,研究人员意味着建立电机的数学模型。根据电动机的数学模型的分析,本文提出了一种改善的滑动模式观察者,以获得光滑观察的背部电动势(EMF)。此外,当移动器在单个定子中移动或跨两个定子中移动时,两个段的观察的后退EMF和同步的观察的方法解决了速度和位置观察问题。以这种方式,可以通过无传感器算法可以实现具有高动态响应能力的速度闭环控制。最终,通过验证模拟测试,分段电机可以通过使用上述控制算法来满足EML字段的需求。

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