Analysis and Design of Multi-Phase Combined Windings for Bearingless Machines
Analysis and Design of Multi-Phase Combined Windings for Bearingless Machines
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DOI：
10.1109/ecce47101.2021.9595992
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发表时间：
2021-10
期刊：
影响因子：
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通讯作者：
A. Khamitov;E. Severson
中科院分区：
文献类型：
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作者：
A. Khamitov;E. Severson
提出并开发了一种用于无轴承机床的多相组合绕组设计方法。使用该程序，可以设计新的无轴承电机绕组，并且可以通过简单地修改相电流将具有MP绕组的传统电机设计转换为无轴承电机。由此产生的MP绕组由两个电流组件激发-一个负责产生扭矩，另一个负责产生悬浮力。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。虽然文献中有许多论文研究带MP绕组的无轴承机床及其优点，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。提出的方法可用于实现流行的绕组设计，包括集中和部分槽绕组。本文利用Maxwell应力张量建立了MP组合绕组的力/转矩模型，并根据计算结果推导出MP组合绕组的设计要求。提出了一套绕组设计步骤，并用于设计实例MP组合绕组。
A 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. 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 for the MP combined winding. A sequence of winding design steps is proposed and used to design example MP combined windings.