电动式磁悬浮动量球电磁场耦合分析

本文针对电动式磁悬浮动量球(Electrodynamic suspension reaction sphere, EDSRS)的电磁场耦合进行分析，采用定子绕组的感应电动势评判耦合强度，提出了耦合强度评判指标，作为EDSRS的结构设计约束，以降低电磁场耦合的影响。首先，结合EDSRS的具体结构特点，对多定子之间的电磁场耦合问题进行分析，采用定子电磁场在另一个定子绕组中产生的感应电动势评判耦合强度。然后，对感应电动势产生规律进行分析，提出了耦合强度评判指标，并基于所提评判指标，建立了耦合约束验证流程，作为EDSRS的结构设计约束，最后，通过有限元仿真和实验验证了上述电磁场耦合分析。

Electromagnetic Coupling Analysis of the Electrodynamic Suspension Reaction Sphere#br#

In this paper, this electromagnetic coupling of the electrodynamic suspension reaction sphere (EDSRS) is analyzed for the design and optimization of the EDSRS. The induced electromotive force in the stator winding is used to represent the coupling strength. The coupling strength index is proposed to guide the structural design and decrease the influence of the electromagnetic coupling. Firstly, according to the structural characteristic of the EDSRS, the induced electromotive force in one stator winding generated form the electromagnetic field of another stator is used to represent the coupling strength. Secondly, the regular pattern of the generation of the induced electromotive force is analyzed. According to the induced electromotive force, the coupling strength index is proposed. Based on the coupling strength index, the verification flow of the electromagnetic coupling is establish. Finally, the analysis of the electromagnetic coupling of the EDSRS is verified by finite element simulations and experiments.