摘要
针对变频空调用功率因数校正（PFC）电路中的电感在运行时存在局部过热、温升较高的情况，本文采用电磁热耦合仿真对其进行了优化设计。通过有限元分析，搭建了PFC电感三维电磁热场的仿真模型，利用电磁仿真计算得出PFC电感的功率损耗，并将其作为热源进行了热场模拟。通过改变绕组的匝数和磁心的尺寸，模拟了四组不同的设计方案，分别进行了磁场-热耦合分析，从中给出了优化设计方案。实际运行表明，优化后的PFC电感有效降低了温升和损耗，设计方法对于其他电感器件的设计具有参考价值。
In view of the local overheating and the higher temperature rise of the inductance in the power factor correction （PFC） circuit of the inverter air conditioner during operation, the electromagnetic coupling simulation is adopted to optimize the design of the inductor. The three-dimensional electromagnetic thermal field simulation model of PFC inductor is established by the finite element analysis method. The power loss of each component of the reactor is calculated by electromagnetic simulation, and the thermal field is simulated as a heat source. By changing the number of turns and the size of the magnetic core, four different design schemes are simulated. The magnetic field thermal coupling analysis is carried out, and the optimal design scheme is given. The actual operation shows that the optimized PFC inductor effectively reduces the temperature rise and loss, and the design method is of reference value for the design of other inductors.
作者
景馨
王春芳
王世伟
王放
Jing Xin;Wang Chunfang;Wang Shiwei;Wang Fang(Qingdao University Qingdao 266071 China;Qingdao Yunlu Energy Technology Co.Ltd Qingdao 266109 China)
出处
《电气工程学报》
2018年第1期30-37,共8页
Journal of Electrical Engineering
关键词
变频空调
PFC电感
有限元
电磁热场
Variable frequency air conditioner, power factor correction inductance, finite element analysis, electromagnetic thermal field
