基于Maxwell的四极串激电机运行特性分析

针对串激电机原材料成本不断上涨的情况,文中基于一款电镐电机,提出了一种新型四极单相串激电机设计.该电机电枢绕组端部较短,电刷数较少,且定子辅助磁极无需励磁绕组,可有效减少串激电机的材料成本.通过对传统两极串激电机结构的改进,初步确定了新型四极串激电机的结构参数.利用Maxwell软件建立了电机二维有限元模型,对新型串激...

Operation Characteristics Analysis of Four-Poles Universal Motor Based on Maxwell

In order to reduce the cost of the universal motor, a new four pole double brush universal motor is designed based on a pick motor. The motor has the advantages of short end of armature winding, reduced brush number, and no need of excitation winding for stator auxiliary magnetic pole, which can effectively reduce the material cost of the series motor. By improving the structure of the traditional two-poles series motor, the structural parameters of the new four-poles series motor are preliminarily determined, and the two-dimensional finite element model of the motor is established using Maxwell software. The mathematical model and air gap flux density of the new series motor are analyzed, and the operating characteristics and load performance of the motor are compared and analyzed. The results show that the four-poles series motor is superior to the original two-pole motor in terms of operating characteristics and load performance. The above findings provide a research basis for further optimization of the motor.