| 杨亚龙,陈敬亮,郑金星,孙金鑫.50 kW超导电机电磁设计及旋转场下交流损耗分析[J].安徽建筑大学学报,2026,34(4):71-78 |
| 50 kW超导电机电磁设计及旋转场下交流损耗分析 |
| Electromagnetic Design of a 50-kW Superconducting Motor and Analysis of AC Losses Under Rotating Field Conditions |
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| DOI： |
| 中文关键词: 超导电机 T-A公式 旋转磁场 交流损耗 |
| 英文关键词: superconducting motor T-A formulation rotating magnetic field AC loss |
| 基金项目:国家自然科学基金杰出青年科学基金项目（52525702） |
| 作者 | 单位 | | 杨亚龙 | School of Electronic and Information Engineering,Anhui Jianzhu University,Hefei 230601,China | | 陈敬亮 | School of Electronic and Information Engineering,Anhui Jianzhu University,Hefei 230601,China | | 郑金星 | Institute of Plasma Physics,Hefei Institutes of Physical Science,Hefei 230031,China | | 孙金鑫 | Institute of Plasma Physics,Hefei Institutes of Physical Science,Hefei 230031,China |
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| 中文摘要: |
| 为推进高功率密度超导电机在船舶推进领域的应用，本文完成了一台50 kW高温超导永磁同步电机（HTS-PMSM）的电磁设计与交流损耗研究。定子采用无铁心集中式绕组，以此减轻整机重量并消除铁芯损耗。本次研究的核心为超导线圈优化设计与交流损耗分析：首先，在总安匝数固定的前提下，对比4～8饼共五种线圈配置方案在自场环境下的交流损耗、临界电流安全裕度及切向洛伦兹力；综合比对后确定，6饼×110匝方案可在损耗水平、运行安全性与转矩输出能力三者间实现最优平衡。依托T-A公式搭建包含转子旋转磁场、三相绕组磁场、线圈自场在内的全耦合有限元模型，针对该优选线圈，解析其多工况运行下的交流损耗变化规律。结果显示：交流损耗高度集中于线圈最外侧区域，损耗来源以转子旋转磁场的垂直分量为主。该电机在额定转速750 r/min下可输出671.85 N·m平均转矩，综合性能符合设计预期。本研究可为兆瓦级高温超导永磁同步电机（HTS-PMSM）的线圈优化设计与损耗预测提供重要的方法支撑与理论参考。 |
| 英文摘要: |
| To promote the engineering application of high-power-density superconducting motors in marine propulsion systems, this paper presents the electromagnetic design and AC loss analysis of a 50-kW high-temperature superconducting permanent magnet synchronous motor (HTS-PMSM). The stator adopts an ironless concentrated winding to reduce overall weight and eliminate iron losses. Focusing on superconducting coil optimization and AC loss characteristic analysis, five coil configurations with 4 to 8 pancakes are compared under the self-field condition in terms of AC loss performance, critical current safety margin, and tangential Lorentz force. The configuration of 6 pancakes × 110 turns achieves the optimal balance among loss suppression, operational safety and torque output capability. Based on the T-A formulation, a fully coupled finite element model integrating the rotor rotating magnetic field, three-phase winding magnetic field, and coil self-magnetic field is established to investigate the AC loss characteristics of the optimized coil under complex operating conditions. The results reveal that AC losses are highly concentrated in the outermost coil pancakes and are predominantly dominated by the perpendicular component of the rotor rotating magnetic field. The proposed motor design delivers an average torque of 671.85 N·m at a rated speed of 750 r/min, which fully meets the design requirements. This work provides key technical methods and a solid theoretical foundation for coil optimization design and AC loss prediction of megawatt-class HTS-PMSMs. |
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