中国电机工程学报2025，Vol.45Issue(7)：2832-2844,中插34,14.DOI:10.13334/j.0258-8013.pcsee.232643
计及压应力对磁场强度各分量影响的无取向硅钢磁弹性耦合动态磁滞模型
Magnetoelastic Coupled Dynamic Hysteresis Model of Non-oriented Silicon Steel Sheet Considering the Influence of Compressive Stress on Components of Magnetic Field Strength
摘要
Abstract
Non-oriented silicon steel sheets are widely used in various electrical equipment such as motors,and their magnetization and loss characteristics are significantly influenced by compressive stress.The existing hysteresis models considering compressive stress have problems such as low simulation accuracy and unclear parameter-dependent stress relationship.In this paper,based on the loss statistical theory and the field separation method,the effects of compressive stress on the magnetic field strength corresponding to hysteresis loss,eddy current loss and residual loss components are analyzed separately.In the original Energetic model,it introduces the energy density caused by compressive stress and derives the expression for the change in static magnetic field strength due to compressive stress,and then calculates the static magnetic field strength.It is clear that the magnetic field strength corresponding to the macroscopic eddy current loss within the elastic limit is not affected by compressive stress.Based on experiments and domain theory,it defines equivalent stress,derives the expression for the residual loss parameter V0 and calculates the magnetic field strength corresponding to residual loss.Finally,the dynamic magnetic field intensity is calculated and the dynamic hysteresis model is established.The model calculation results and experimental results show that the proposed dynamic model parameters have a clear relationship with compressive stress and demonstrate high accuracy and practicality.关键词
无取向硅钢/压应力/应力依赖/磁弹性耦合动态模型Key words
non-oriented silicon steel/compressive stress/stress dependence/magnetoelastic coupling dynamic model分类
信息技术与安全科学引用本文复制引用
付裕恒,李琳..计及压应力对磁场强度各分量影响的无取向硅钢磁弹性耦合动态磁滞模型[J].中国电机工程学报,2025,45(7):2832-2844,中插34,14.基金项目
国家重点研发计划项目(2021YFB2401700) （2021YFB2401700）
国家自然科学基金项目(52177005).National Key R&D Program of China(2021YFB2401700) （52177005）
Project Supported by National Natural Science Foundation of China(52177005). （52177005）
