电工软磁材料旋转磁滞损耗测量及建模

发布时间：2018-06-24 07:06

本文选题：电机铁耗 + 磁滞损耗　；参考：《电工技术学报》2017年11期

【摘要】：电力变压器和电机中存在旋转铁心损耗是其损耗预测不准的主要原因之一。针对该问题,提出电工软磁材料旋转磁滞损耗测量及建模方法。首先,矢量磁滞损耗分解为切向损耗和法向损耗两部分,分别根据圆形旋转损耗和交变损耗建模。其次,对软磁复合材料和无取向电工钢片进行模型参数辨识,并比较两种材料的损耗特性和模型参数。最后,利用三维磁特性测量装置进行多种励磁模式下的损耗测量,并对比实验结果与模型预测值。结果表明,在旋转复杂激励下,所提出的模型比传统的Steinmetz模型有更高的精度。
[Abstract]:The loss of rotating core in power transformers and motors is one of the main reasons for the inaccuracy of loss prediction. To solve this problem, a method for measuring and modeling the rotational hysteresis loss of soft magnetic materials is proposed. Firstly, the vector hysteresis loss is decomposed into tangential loss and normal loss. Secondly, the model parameters of soft magnetic composite material and non-oriented electric steel sheet are identified, and the loss characteristics and model parameters of the two materials are compared. Finally, the three dimensional magnetic characteristic measurement device is used to measure the loss in various excitation modes, and the experimental results are compared with the predicted values of the model. The results show that the proposed model is more accurate than the traditional Steinmetz model under complex rotating excitation.
【作者单位】：河北工业大学电磁场与电气可靠性省部共建重点实验室;天津工业大学电工电能新技术天津市重点实验室;
【基金】：国家自然科学基金资助项目(51237005,51507045)
【分类号】：TM271.2

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