Traditionally, straggering the primaries of the double-sided permanent magnet linear synchronous motor (DS-PMLSM) is beneficial in helping to reduce the detent force caused by the longitudinal end effect, but leading to a reduction of the average thrust. To overcome this disadvantage, this paper provides a novel DS-PMLSM, which adopts the structure of staggering two primaries and rearranging windings. First, the characteristics of the voltage and detent force are analyzed theoretically and verified by finite element (FEM) simulations. The inductance, thrust, and normal forces are then compared with the traditional DS-PMLSM. Furthermore, the geometrical parameters are optimized to improve the thrust. Finally, one DS-PMLSM prototype is tested. The detent force and back electromotive force tested results verify the effectiveness of the topology proposed in this research.

中文翻译：

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采用交错初级结构的双面永磁直线同步电机的电磁和推力特性


传统上，双侧永磁直线同步电机（DS-PMLSM）的初级错开有利于减少纵向末端效应引起的制动力，但会导致平均推力减小。为了克服这一缺点，本文提出了一种新型DS-PMLSM，它采用两个初级错开并重新排列绕组的结构。首先，对电压和制动力的特性进行理论分析，并通过有限元（FEM）模拟进行验证。然后将电感、推力和法向力与传统 DS-PMLSM 进行比较。此外，还优化了几何参数以提高推力。最后，对一台 DS-PMLSM 原型机进行了测试。制动力和反电动势测试结果验证了本研究提出的拓扑的有效性。