新型串联磁路混合励磁直线涡流制动器特性分析

发布时间：2018-06-03 22:12

本文选题：涡流制动器 + 混合励磁　；参考：《电工技术学报》2016年15期

【摘要】：提出了一种新型串联磁路混合励磁直线涡流制动器结构方案,其气隙磁场由初级励磁绕组和永磁体共同产生,因此具有气隙磁感应强度的幅值大、可调节和励磁损耗小等优点。本文首先详细介绍了串联磁路混合励磁直线涡流制动器的基本结构和工作原理。其次,根据等效磁路法和分层理论推导出了导体板中的涡流损耗与制动力的解析表达式,即建立了串联磁路混合励磁直线涡流制动器的解析模型。然后,通过二维有限元法验证了解析模型的准确性和有效性。最后,具体分析了混合励磁涡流制动器的电磁参数对力特性曲线的影响,为混合励磁涡流制动器的优化设计提供了理论依据。
[Abstract]:In this paper, a new type of series magnetic circuit hybrid excitation linear eddy current brake is proposed. The air-gap magnetic field is produced by the primary excitation winding and the permanent magnet, so it has the advantages of large amplitude of air-gap magnetic induction intensity, adjustable excitation loss and so on. In this paper, the basic structure and working principle of series magnetic circuit hybrid excitation linear eddy current brake are introduced in detail. Secondly, the analytical expressions of eddy current loss and braking force in conductor plate are derived according to the method of equivalent magnetic circuit and stratification theory, that is, the analytical model of linear eddy current brake with hybrid excitation in series magnetic circuit is established. Then, the accuracy and validity of the analytical model are verified by two-dimensional finite element method. Finally, the influence of electromagnetic parameters on the force characteristic curve of the hybrid excitation eddy current brake is analyzed in detail, which provides a theoretical basis for the optimization design of the hybrid excitation eddy current brake.
【作者单位】：哈尔滨工业大学电气工程及自动化学院;
【基金】：国家科技重大专项(2012ZX04001-051)资助项目
【分类号】：TH136

【相似文献】