摘要
针对轮缘驱动无轴推进器中集成化永磁电机的散热问题,设计了自然循环的海水冷方案,即在无轴推进器桨叶的前、后端开槽,并与电机定、转子间的气隙连通,形成闭合的、与推进器进出流方向相反的自然水循环通道,冷却通道的流量由推进器桨叶前后截面的压力差、气隙的高度等参数决定。文章基于有限元方法计算了永磁推进电机的电磁性能,并采用有限体积法对轮缘驱动式集成化永磁电机推进器的冷却方案进行了电磁场、温度场与流场的耦合计算,校验了集成化永磁推进电机冷却方案的有效性。
Since electrical machine＇s working temperature significantly affects permanent magnet （PM） characteristic and reliability of the insulation, the design of effective cooling system becomes a vital concern of rim driven propulsor. In this paper, a natural cooling system is designed for the integrated PM motor inside a rim driven propulsor by designing the cooling water passing through air-gap between PM motor＇s stator and rotor. In order to predict maximum temperature precisely, an electromagnetic, thermal and computational fluid dynamic coupled multifield analysis is developed and applied to verify the effectiveness of designed natural cooling system.
出处
《船电技术》
2016年第3期28-31,共4页
Marine Electric & Electronic Engineering
基金
国家自然科学基金青年科学基金资助项目(51307177
51309229
51409256)
