电工技术学报2016，Vol.31Issue(15)：16-24,9.
用于电机损耗精细化分析的分段变系数铁耗计算模型
A Piecewise Variable Coefficient Model for Precise Analysis on Iron Losses of Electrical Machines
摘要
Abstract
This paper proposed a precise iron losses prediction model with piecewise variable coefficients. Based on the Bertotti’s three-term iron loss model,an additional flux density higher-order term and an additional flux density lower-order term are introduced to consider the increased eddy current loss and the local hysteresis loss caused by magnetic saturation and harmonic field,respectively. Meanwhile,the main loss coefficients are varying with the amplitude and frequency of the flux density,through which the influence of the fundamental and harmonic fields on iron losses are considered effectively. At the same time,the hysteresis loss,eddy current loss,and excess loss can also be predicted accurately. To verify the effectiveness of the presented model,the experimental validations are carried out on two induction motors,i. e. Y132S-4,5. 5 kW and YX3-250M-4, 55 kW,under different supply voltages with no-load. Both the presented model and Bertotti’s three-term iron loss model are used to predict the iron losses of the above motors. It reveals that the iron loss predicted by the presented model agree well with the tested ones across a wide voltage ranges.关键词
电机/铁耗/磁滞/涡流/非线性Key words
Electrical machines/iron losses/hysteresis/eddy current/non-linear分类
信息技术与安全科学引用本文复制引用
张冬冬,赵海森,王义龙,许国瑞,刘晓芳..用于电机损耗精细化分析的分段变系数铁耗计算模型[J].电工技术学报,2016,31(15):16-24,9.基金项目
国家自然科学基金（51307050）、北京市科技计划项目（Z1411000014007）和中央高校基本科研业务费专项资金（2015ZD03）资助。 （）
