变频空调传导干扰简化建模

Simplified Modeling of Conducted Interference in Inverter Air Conditioner

本文分析并提出了一种变频空调传导干扰简化建模方法。此方法在确定复合传导干扰模型拓扑的基础上,对干扰的差模及共模信号进行分离,分别确定差模传导干扰模型与共模传导干扰模型。并通过加入检测负载的方法计算出分离模型的内阻。由于模型及内阻的计算都需要差模信号与共模信号进行分离,本文介绍了所采用的信号分离方案。此模型在1匹变频空调系统的EMC实验中进行了验证,实验结果证明了此简化模型的有效性。

This paper presents a simplified modeling method of conducted interference in inverter air conditioner. On the base of hybrid conducted interference model, the interference signal is separated into the differential and com- mon mode signal. Then it determines the differential mode and common mode interference model respectively. The internal resister of the model is calculated by way of insetting load method. Because both the modeling and internal resister calculation needing the separation of the interference, the signal separation method adopted is introduced. The proposed conducted interference model is applied on a 1 HP inverter air conditioner system＇ s EMC experiment. The experimental results indicate the validity of the proposed model.