Vector hysteresis modeling of ferromagnetic materials

铁磁材料的矢量磁滞行为在电机和磁致动器的设计和优化过程中起着核心作用。目前，由于永磁体的退磁效应、磁致动器的伺服动力学降低或电力电子或旋转电机中的铁耗等实际问题，无法使用传统的材料模型解决，或者使用在受限运行区域有效的粗略近似来研究。本项目致力于在有限元(FE)模拟中集成矢量磁滞模型，旨在基于有限元的空间分辨磁场和铁耗计算，而不受运行条件的限制。研究和应用合作伙伴博世将原始和对偶的矢量滞后模型集成到他的内部有限元工具Edyson中，并最终通过不同的复杂程度增加的实际案例研究(从一维问题到三维问题)进行验证。与此工作平行的是，IEM能够将矢量滞后模型集成到他的内部有限元工具iMOOSE中，并通过不同的复杂程度增加的实际案例研究(从一维问题到三维问题)来验证这种扩展。由于原始矢量滞后模型基于前一DFG资助项目范围内的初步工作，因此被转移给工业研究合作伙伴博世，原始矢量滞后模型的可能必要的改进以及对偶矢量滞后模型的构建是在所请求的转移项目的背景下进行的合作团队工作的目标。

Vector hysteresis behavior of ferromagnetic materials plays a central role for the design and optimization process of electrical machines and magnetic actuators. Currently, practical issues, such as loss of performance of electromagnetic energy conversion devices due to demagnetization effects in permanent magnets, due to reduced servo-dynamics in magnetic actuators or due to iron losses in power electronics or rotating electrical machines, cannot be addressed using conventional material models or are investigated using rough approximations valid in restricted operation regions if at all.This project strives to integrate vector hysteresis models in finite element (FE) simulations aiming at an FE-based spatially resolved magnetic field and iron loss calculation without limitations with respect to operational conditions. Both primal and dual vector hysteresis models are integrated by the research and application partner Bosch into his in-house FE tool Edyson and finally validated by different practical case studies of increasing complexity (from one-dimensional to three-dimensional problems).Parallel to that work the IEM is able to integrate the vector hysteresis models into his in-house FE tool iMOOSE and to validate this extension through different practical case studies of increasing complexity (from one-dimensional to three-dimensional problems). Subsequently, this permits a cross comparison of both field calculation concepts.Whereas primal vector hysteresis models are based on preliminary work within the scope of the preceding DFG funded project and are therefore transferred to the industrial research partner Bosch, the possibly necessary advancement of primal vector hysteresis models as well as the construction of the dual vector hysteresis models are objects of the cooperative teamwork which takes place in the context of the requested transfer project.