A generalized multi-phase (MP) combined winding design procedure for bearingless machines is proposed and developed. Using this procedure, new bearingless motor windings can be designed and conventional motor designs with MP windings can be transformed into bearingless motors by simply modifying the phase currents. The resulting MP winding is excited by two current components – one responsible for torque creation and another for suspension force creation. By applying the appropriate Clarke transformation, independent control of force and torque can be achieved. Although there are numerous papers in the literature studying bearingless machines with MP windings and their advantages, this is the first paper to provide a formal design procedure that can be applied to any MP winding configuration. The proposed approach can be used to realize popular winding designs, including concentrated- and fractional-slot windings, and is applicable to all radial-flux bearingless machines. The paper uses the Maxwell stress tensor to formulate the force/torque model for the MP combined winding and uses the results to derive design requirements. A sequence of winding design steps is proposed and used to design example MP combined windings. Experimental validation is provided using a six-phase bearingless induction machine prototype.

中文翻译：

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基于遮挡感知的人体网格模型的步态识别


提出并开发了一种用于无轴承电机的通用多相（MP）组合绕组设计程序。使用此过程，可以设计新的无轴承电机绕组，并且只需修改相电流即可将具有 MP 绕组的传统电机设计转变为无轴承电机。由此产生的 MP 绕组由两个电流分量激励 - 一个负责产生扭矩，另一个负责产生悬架力。通过应用适当的克拉克变换，可以实现力和扭矩的独立控制。尽管文献中有大量研究采用 MP 绕组的无轴承电机及其优点的论文，但这是第一篇提供可应用于任何 MP 绕组配置的正式设计程序的论文。所提出的方法可用于实现流行的绕组设计，包括集中槽绕组和分数槽绕组，并且适用于所有径向磁通无轴承机器。本文使用麦克斯韦应力张量来制定 MP 组合绕组的力/扭矩模型，并使用结果得出设计要求。提出了一系列绕组设计步骤，并将其用于设计示例 MP 组合绕组。使用六相无轴承感应电机原型进行实验验证。