CAJ | 학술논문

为了能够准确快速的估算永磁式感应热机的热功率大小，针对该热机的结构特点，为其建立定子导体的涡流损耗解析模型。该解析模型基于库伦定律、洛伦兹力定律等基本电磁场理论，以热功率与转速关系为设计目标，给出设计参数与设计目标之间的明确关系，并在分析过程中考虑了趋肤效应的影响，增加其适用的转速范围。以定子涡流损耗为热源，根据热机内流体流动与传热的特点，建立了定子传热管道系统的三维流场与温度场的物理模型和数学模型，采用有限体积法准确的计算出定子传热管道系统的流场速度及温度分布。涡流损耗解析模型估算结果与有限元计算结果对比，证实该解析模型能够快速并准确的预测出低转速范围内热功率随转速变化的关系。热机的涡流损耗计算与传热分析可为其结构设计及优化提供重要参考与依据。
위료능구준학쾌속적고산영자식감응열궤적열공솔대소，침대해열궤적결구특점，위기건립정자도체적와류손모해석모형。해해석모형기우고륜정률、락륜자력정률등기본전자장이론，이열공솔여전속관계위설계목표，급출설계삼수여설계목표지간적명학관계，병재분석과정중고필료추부효응적영향，증가기괄용적전속범위。이정자와류손모위열원，근거열궤내류체류동여전열적특점，건립료정자전열관도계통적삼유류장여온도장적물리모형화수학모형，채용유한체적법준학적계산출정자전열관도계통적류장속도급온도분포。와류손모해석모형고산결과여유한원계산결과대비，증실해해석모형능구쾌속병준학적예측출저전속범위내열공솔수전속변화적관계。열궤적와류손모계산여전열분석가위기결구설계급우화제공중요삼고여의거。
In order to estimate the thermal power of a permanent magnet induction heating device quickly and accurately, an analytical model of eddy-current loss of the stator was established, according to struc-ture characteristics. The relationship between eddy-current loss and speed was given based on the Cou-lomb’s law and the Lorentz force law. The skin effect was considered in the process of analysis, which ex-tended the applicable speed range of the model. The eddy-current loss of the stator is the heat source of the device. Then, the mathematical and physical model of 3-D fluid and temperature field inside the tube heat exchange system were established, according to the characteristics of fluid-flow and heat-transfer, which numerically calculated using finite volume method ( FVM) . The analytical solution was compared with the finite element analysis results, indicating a good agreement in low-speed range. The analysis of eddy-cur-rent loss and heat transfer provides important reference for the design and optimization of the device.