CAJ | 학술논문

为了有效解决电机温升不易准确计算的难题，该文首先提出基于多领域协同仿真的高密度永磁电机温升计算理念，详细论述温升计算的流程。基于热传导理论，论文导出槽内绕组等效导热系数的计算方法，有效地考虑了漆包线绝缘层、浸渍漆和微孔对电机温升的影响。以一台48槽/8极高密度永磁电机样机为例，基于多领域协同仿真的计算方法，精确计算样机的铁耗、计及集肤效应的交流绕组铜耗，以及永磁体的涡流损耗和电机内的温度场。最后，进行样机的温升试验，温度场计算值与试验结果基本吻合，验证了基于多领域协同仿真的高密度永磁电机温升计算方法的准确性和有效性。
위료유효해결전궤온승불역준학계산적난제，해문수선제출기우다영역협동방진적고밀도영자전궤온승계산이념，상세논술온승계산적류정。기우열전도이론，논문도출조내요조등효도열계수적계산방법，유효지고필료칠포선절연층、침지칠화미공대전궤온승적영향。이일태48조/8겁고밀도영자전궤양궤위례，기우다영역협동방진적계산방법，정학계산양궤적철모、계급집부효응적교류요조동모，이급영자체적와류손모화전궤내적온도장。최후，진행양궤적온승시험，온도장계산치여시험결과기본문합，험증료기우다영역협동방진적고밀도영자전궤온승계산방법적준학성화유효성。
In order to accurately analyze the temperature rise of high density permanent magnet motors (HDPMM), a new temperature calculation conception of the HDPMM based on multi-domain co-simulation was proposed and its calculation process was elaborated.According to the theory of heat transfer, the calculation method of equivalent heat transfer coefficient for the stator winding was deduced, which effectively consider the influence of the wire insulation, impregnating varnish and fine air gap in slots on the temperature rise of the motor. Based on multi-domain co-simulation, a prototype of 48-slot 8-pole HDPMM was simulated for its iron losses, AC winding copper losses taking the skin effect into account, permanent magnet eddy losses,and thermal fields. The temperature of the prototype machine was tested. The good agreement between the tested data and the simulated data verifies the validity and precision of the simulation approach.